Ashwin, Unadkat Call for Face-Masks for Bowlers Following Dinda Incident Loading
India internationals R Ashwin and Jaydev Unadkat have called for a protective gear for the bowlers, probably a face-mask, after domestic stalwart Ashok Dinda was hit on the forehead while attempting a sharp caught-and-bowled chance during Bengal's Twenty 20 practice match at Eden Gardens
The incident happened when batsman Birender Vivek Singh hit straight and Dinda attempted the catch on his follow through but it slipped from his hand and hit his forehead
The 34-year-old lay on the ground before getting up and bowling a few more balls, before eventually leaving the ground
"About time that a "face-mask" for bowlers makes its way into all that has evolved in cricket
Its scary how this kind of incidents have become frequent in our game! Hope you good Dinda @dindaashoke
What do you say Ash bhai? @ashwinravi99," tweeted Unadkat. To which, Ashwin replied: "Been saying it since 2011, these kind of incidences never used to happen in the pre-T 20 Era
Something has surely changed , wonder what it is." Thankfully Dinda was cleared of any serious damage following scans
"Dinda looked fine as he completed the over before returning to the dressing room
As a precautionary measure, he was taken for scans. There is nothing alarming but he has been advised two days of rest," reported PTI
In the era of power hitting, even umpires have been seen using protective equipments in the limited-overs cricket
There have been incidents in the past where bowlers have taken the field with a face-mask on
Warren Barnes from Otago is someone who bowls with a custom-made mask.
For more infomation >> Ashwin, Unadkat Call for Face-Masks for Bowlers Following Dinda Incident - Duration: 3:42.-------------------------------------------
Bitcoin, chi garantisce e chi li emette? Giacomo Zucco "Understanding Bitcoin" - Duration: 8:35.
We have answered the question "Where?"with the concept of decentralisation and open source system
. But now we have to answer the question "Who?", in particular, in a file sharing system like BitTorrent,
it is not important who has modified the files, who is sending us a song, who is sending us a video, it is completely irrelevant
If each of us keeps some pieces of information, it is not important to know who is the author of the changes in this information,
we are not interested in knowing that a film was actually uploaded on the network by this or that person.
However, in a computer system that has to manage the exchange of value and the exchange of money, the issue is not so simple.
The question "Who?" becomes fundamental, in particular, it is very important to know that who updated the database, the financial ledger,
perhaps taking money from the account that corresponds to me, and adding money to the account that corresponds to them, did so under my supervision and my authorisation.
Otherwise in a system like BitTorrent, where everyone keeps part of the data, but where there is no way to certify who has the authority to change that data,
who has the authority to update the financial register, in such a system, anybody could basically take anyone's money.
With physical gold for example, we can't simply decide that a certain nugget, or a certain ingot, or a certain coin, travels from one hand and arrives in our hands with a single move
Whereas with a distributed ledger, where there is no central control, anyone could propagate a manipulated, altered, different copy of the ledger, where the value has been moved from one person to another.
This is where bitcoin introduces a new technology, it is not yet the so-called blockchain technology,
it is a much older technology that has been around since the 80's, maybe even a little earlier, it is the so-called Digital Signature.
Basically, what happens is that every time a person wants to change the content of the bitcoin financial ledger,
that person must also sign the alteration with a process that is called digital signature,
which is a little different from the physical signature that we do on documents, but has more or less the same purpose.
The idea is that the signature is easy to verify for anyone and difficult to replicate for those who do not have, for example, my handwriting.
In the case of digital signature we use a technology called asymmetric cryptography, there are basically two large numbers, one of these numbers is called private,
secret or cryptographic key, and it is a number that we must keep protected and absolutely private.
And then there is another number, called public key, which is a sort of, let's say, public address.
Even if it is not a correct metaphor, we could say that the public key is a bit like the IBAN of a bank account or the email address of an email box.
This public number must be known to anyone who wants to send us value. Whereas the private number, the secret key, is the only thing that allows to move that value. How?
There is a mathematical relationship between these two numbers that works in such a way as to allow any of us who are
in possession of the private key to take a statement, a text or a message, and to sign it.
This applies a mathematical function which is done on the basis of the secret key and that produces something that in cryptography is called a witness,
which is a signature that can be verified by anyone who has the text and our public key at their disposal but without sharing with them our private key.
This means that we can hold a secret key, associated with our public address, which allows us to change to whom and what we are sending within bitcoin's financial ledger, but without there being a central party.
With PayPal, VISA or Venmo, there is absolutely no need for this type of advanced technology.
PayPal has a central server that decides who can transfer and when they can transfer, and we connect by providing our username and password, but there is no need for 2-key encryption.
This is a requirement that has been implemented not only in the bitcoin system, but also in systems before bitcoin, for example, in 1990 Ecash was created as a value exchange system based on public key cryptography.
So it's nothing new, not invented by Satoshi Nakamoto in 2008, it's something pre-existing and very important.
This is where we understand that the term blockchain is not the only important term in the technology that underlies bitcoin.
The digital signature is equally important and is a fundamental part that answers the question "Who can transfer bitcoin?"
It is interesting to note that the answer to the question "Where?" provides for a substantial opening, a sharing, that is,
everyone must have the information of all since decentralisation and open source are characteristics that allow everyone to publish and share information.
Whereas the answer to the question "Who?" foresees the need to keep a certain information very secret, it is the opposite of open source, decentralisation and file sharing.
The security of bitcoin depends both on the distribution of the bitcoin program, its source, its data and its financial ledger, as well as on the absolute secrecy and security of the individual users' private keys.
We have said that these private keys are connected by a unidirectional mathematical function to the public bitcoin address, however,
the address is not really a public key, the bitcoin address is so to speak the cryptographic fingerprint of a public key, and we can not really say that a bitcoin address resembles the IBAN of a bank,
because a bank's IBAN is used repeatedly, whereas, for security reasons, bitcoin addresses must be used only once.
They are given to the payer to pay, and then are forgotten until they are spent and the next time a new address is used to request more bitcoins.
So, to make things easier, these cryptographic traces of the public key are like single-use IBANs.
However, this implies that it is necessary to move from subjects such as those we have dealt with in the first videos,
related to the history of currency, economics, finance, politics, to very technical matters related to computer security.
In order to be able to use bitcoin safely, or to allow their users to use bitcoin safely, individuals or companies that are making bitcoin products and services,
must learn about cyber-security, that is, all those techniques and strategies that allow to keep this key hidden.
If someone has your private key, that someone can move your bitcoins, claiming to be you,
without anyone stopping them because there is no legal name associated with a single bitcoin address and there is no document request before moving bitcoins.
Anyone, by their very nature, can write on this decentralised ledger.
Only those who have the key can move value, this means that if you lose your key, because you hid it too well, so well that even you can no longer find it, you can no longer move your bitcoins.
There is no customer service to call, there is no emergency security question, if you no longer have that key then your bitcoins can no longer be moved.
A bit like if you lose a golden nugget, you can't claim it back from anyone, you lost it, you don't have it anymore, almost like a physical object.
Similarly, if you leave a gold nugget on the bar counter and move away, most likely you will not find that gold nugget when you return.
If you think about it, this is very different from a banking system or a centralised online payment system.
In those cases you can always ask for help, there's backup if you lose the key, or you can always ask to cancel a transaction if someone has stolen your credit card for example.
Bitcoin guarantees a lot of freedom but this freedom comes at the price of a lot of responsibility, basically the user must learn to manage their keys.
It's a kind of competence that is required even by electronics devices called hardware wallets, which are devices that try to reduce the area of attack through which external entities can learn about our private keys.
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Bambini (e genitori) sotto pressione - Duration: 7:42.
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5 Plantas Resistentes para Varandas e Coberturas | Nô Figueiredo - Duration: 4:03.
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Jaguar E-PACE | Cars VS Couples - Duration: 3:11.
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Mercato: La Roma si gode il talento di Nicolò Zaniolo e non vuole rischiare di perderlo. - Duration: 3:00.
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5 segnali che indicano che lui ti tradisce - Duration: 2:13.
we already see five signals that indicate that he then betrays you the first one
signal and when it calls into question the trust in you, that is, you do not
trust you because those who cheat have to he usually thinks that even the tall one can
betray because we attribute what we also do to others for which they are
traitors who are the most jealous more mischievous because omnia munda mundis
that is, the world is pure because pure of spirit that he who is not pure in spirit who sells
how to say the world can not then be a another signal if it becomes exaggerated
possessive towards his mobile phone
okay let's say we have privacy handle things but when it becomes
the obsession of having supermanto lo cell phone here cat hatches us
basically another signal when tries to obsessively control the
life of the high to know all the move all the situations because
if you want to obsessively check this that does the other is because of two to find
of the spaces we say inside the other person's commitments
then when a person says we do not tells the truth and this then
discover it for example from non-signals minutes related to the lie if he who
I know about it while talking to you about the dinner it is I went to work with my colleagues
eyes to his right means that yes he is building the answer then
he probably went somewhere else and then do not look let's say it does not give priority
to spend time together even when manages to sneak and that happy
these are all signs that indicate that probable
a betrayal if there are 35 we say that the probability becomes very much
high good for this video is all if you sign up for the channel will have the chance
to ask a question to receive a video of response served of liked
put a like share it with yours friends bye
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Sony Zeiss FE 35mm f/1.4 - recensione completa con esempi - Duration: 10:03.
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How to Start a Business in Brazil – 1st Steps - Duration: 6:53.
You want to do business here in Brazil? Talk to me I've got the tips tricks and
know the trade. Come on down and I'll show you how it's done.
We are an American family of seven, living, working and loving Brazil.
Welcome to the adventures of Our Brazilian Life.
This is awesome! I get an adrenaline rush everyday that I come to work.
It's a big risk, but what adventure is not a big risk?
Hi. My name is Chris. I currently live in Brazil I have a business here in the
country and I'm loving it. I am from the United States. I have my MBA with an
emphasis in finance. I have a supply chain management bachelor's degree from
the University of Nevada and I currently live in Brazil, operating a business here
with my family and I'm really enjoying it. I want to share with you how I
did it so that if you want to do, if you want to follow in my footsteps or do
something similar here in Brazil, you know the tips, you know the tricks
you'll know the steps that I followed to make this happen.
This video is going to be the first in a series of videos that I'm going to do
about business. This first one is intended for foreigners who would like
to do business here in Brazil. Now the first thing that you need to do, the very
first thing is you need to get a CPF number which is the personal tax
identification number that is necessary to do anything here in Brazil. To get a
cell phone, to get a place to live, to purchase groceries at the grocery store,
to get a bank account or anything. You need a CPF number. The next thing you need to
do, if you want to do business in Brazil, you need to get a CNPJ
number, which is oftentimes referred to as CNPJ. This number
is the business tax identification number that you need to do any type of
business relations here in Brazil. This will help you open up a business account.
It'll help you pay taxes when you actually do have the business up and
running. These two numbers are crucial. They're important before you even start
any business here in Brazil. The next important step is to have legal
representation in Brazil. I used a law firm in São Paulo. I had very good
references from this law firm and started to use them and they're very
good. I'm very happy with them. After that you also need an administrator who can
sign all of your legal documents for you. He can go to the cartório, which is
a place where you can officially sign documents and it can be registered. An
administrator for your business, they can open up all the business documents for
you, they can open up a bank account for you, they can have a legal address for
you so that you can open everything up for your business. To do all these
things to have the CNPJ, to have the CPF, to have legal representation, to have an
administrator, I went through a company called Costagille. They're out of Rio de
Janeiro. I was very happy with them. They're professionals. They know how to
get the job done. They know how to do everything and they'll lead you and
they'll guide you and show you the way on how to open up a business and live
here in Brazil. If you try and do this on your own it may be very difficult. It may
be nearly impossible to do it without somebody who knows what they're doing.
There's a lot of bureaucracy in Brazil and you need to have somebody who knows
exactly what they're doing. Costagille, I'll link their information
in the bio. Just check the description. You can see who they are. The legal
representation is going to help you set up your Contrato Social.
The social business contract is a requirement in order for you to do any type of business
here in Brazil. When you have contracts, when you go to lease a building, one of
the documents they're going to ask you for is your contrato social and this
is the document that the legal representation is going to help you put
together so that you can do business in Brazil. It's gonna take between four
to six months to start up a business here in Brazil but be patient because
it's worth it in the end. right now we're very happy with the way our business is
running here in Brazil. Another key point of information on doing business
here in Brazil: Brazil has high import tariffs. Anything that you bring into the
country from another country, they're going to charge you a high tax to bring
whatever it is into the country. Just as a point of
information, high taxes. But the good thing about that is it keeps a lot of
the competitors outside of the country. Once you're in the country, you have less
competition. The barriers to entry into the market are very high. It's well
worth it to jump over those hurdles in the beginning so that you can have a
good business here in Brazil. Another very
important thing to do when you're importing materials into Brazil is
you're gonna need to hire and find a freight forwarder. They're gonna know all
the bureaucratic ins and outs of how to bring materials into the country. I used
a company called HC Logística. I found them here in Salvador. They're a
very good company but if you want to find another company that you rely on or
are comfortable with go ahead find them find your own freight forwarder. They
are very very important when you bring materials into the country. I will
link their information in the description below. We moved our family
from the United States to Brazil. We wanted to experience culture. Brazil is
rich in culture. We wanted our children to be bilingual. We wanted them to learn
Portuguese and they speak Portuguese. It's a beautiful thing. Having
our business here in Brazil is wonderful. It's great to mingle and interact with
Brazilians here in Salvador. We love it! We opened up a trampoline park in Salvador
Bahia Brazil. This trampoline park is great. It's been well received by the
people here in Salvador. It's great to take our kids to work with us. It's a
great family-friendly environment and it's successful. We're doing great here
in Brazil with this trampoline park and we love it. This is going to be
a series about doing business in Brazil. We want to know what questions, what
ideas you may have. So please subscribe to our Channel. Please put your comments
below and let us know what you think about doing business here in Brazil.
-------------------------------------------
Restoration Project 1972 Porsche 911 targa 2.4 E light yellow - Duration: 3:04.
Restoration Project 1972 Porsche 911 targa 2.4 E light yellow
a competition restoration that gave its owner much satisfaction
thanks to the appreciation of the foreign technicians of the Porsche enturage.
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075. Meditações de Santo Afonso Maria de Ligório (AUDIOBOOK) - Duration: 7:56.
For more infomation >> 075. Meditações de Santo Afonso Maria de Ligório (AUDIOBOOK) - Duration: 7:56. -------------------------------------------
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SAINT VALENTINE'S DAY with ASTRID: HOW TO MAKE AN ORIGAMI ROSE! 🌹🖤💙 - Duration: 1:58.
Today I'm going to show you how to make a rose to give to someone you care about.
You need a tissue like this
which you can separate into three pieces.
One, two, three pieces.
I'll start with the blue one.
I want it like this
with this part on the outside and blue on the inside.
So I start rolling like this.
Then I lay it down
and start making bigger rolls.
I'm leaving this much space here.
Now I'm making nice big rolls.
We leave this space here.
This will be the inside of the rose.
I've left the one on the inside a bit lower so it looks nicer.
I tighten it here.
Here you pull out a leaf, like this
and turn it upwards.
Let's tidy it up a bit now.
This is the fun part.
It's a bit big here.
All done!
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We Drive: Citroen C5 Aircross – Test Drive (ENG SUBS) - Duration: 18:42.
Hello dear We Drive friends, and welcome to a new video!
After quite a long time, I'm proud to announce today we'll bring you with us in a new test drive!
This is not the first time we meet this car, though
We already showed it to you in some previous videos
Today I won't be alone, Giuseppe will come with me
I hope Bart will give us his first driving impressions, too
And I'm talking about, of course
The new Citroen C5 Aircross
But before going on a test drive together
Don't forget to subscribe to our channel and turn on future video notifications by clicking on the bell
And also to check out our new Facebook and Instagram accounts!
Now I ask Giuseppe, who's behind the camera right now
To join me discovering this new French SUV
Ok Peppe joined me in the car, he left the camera
We decided to go on a test drive with this car for different reasons
And we also decided to do it together, for a reason
Firstly because we think this is a very interesting car
We made a whole tour of its looks and interiors in a previous video
In another video, Bart focused on its tech and its infotainment system
And we also saw it for the first time in its official debut, you can find all of the links in the description
We never drove it before, but it always looked so comfortable to us
We'll say why this is comfortable, I can confirm this by these first few metres
Yes, it is not letting down our expectations
Why we're doing it together: I can already tell you how the driver's position is super comfy
But we never told you about the passengers
This car is a living room, and to enjoy it, you have to stay and chat with somebody
So Giuseppe is here to talk with me about this car and about his feelings from the passenger seat
I can tell you I feel really comfortable
I really have a lot of leg room
The upholstery on the seat is incredibly soft
These seats come in a great quality leather
By the way, sorry to interrupt you, I read that the seats
Have a 15mm thicker upholstery than normal ones, just to feel more comfortable
Real sofas
We're testing them, not with our hands, though, if you know what I mean
Seems like the French thoughts about our moon-like roads, with roadworks, bumpers and holes
I read about the new Progressiv Hidraulic Cushions by Citroen
A newly developed suspensions system
It doesn't just have normal suspensions, but on each end of the spring
They mounted two dampers, one of the compression phase of the spring, the other for extension
All to make the drive smoothier, you just won't feel any road hole
I guess this would be pretty comfortable on countryside roads, too
Now that I'm finally driving the C5 Aircross I can confirm the smoothiness of the drive
Yes, I can confirm it too, more comfortable than a classic suspensions system
The thicker seats, too, increase this sensation
A really enjoyable living room
Let's give some numbers right now
What's the engine in this very C5 Aircross?
It's a very successfull PSA Groupe engine, the BlueHDi 1.5 with 130HP
With a double clutch, 8-speed EAT8 automatic gearbox
I guess you are finding it comfortable
Yes, I'm still in Drive, I haven't tried the plastic gearbox paddles behind the steering wheel, yet
But, honestly, I don't find them useful in a big car like this one
Yes, let's be honest, a mother or a family man don't usually have sports moments
In the everyday life, it's more likely they'll enjoy how smooth this gearbox is
One more thing about it, earlier when I was bringing you the car
I noticed that at about 70 kph the car was already in 7th gear
Low RPM, low fuel consumptions and no noise inside
We told you about it in the full tour of the car, we'll say it again right now
This 130 HP BlueHDi diesel engine is not the only one available
This is a 4-Cylinder, there's also another diesel engine, turbo like this one, with 180 HP
There are also petrol engines, the PureTech, with 130 and 180 HP too
Some more numbers about this one
About 300NM of maximum torque
Again, this car is big, I'll write its weight on the screen
So maximum speed, if you're interested in knowing it, is about 190 kph
But the gear paddles behind the steering wheel and the maximum speed are not important in this car
Being cradled in long trips is important
It depends on your habits, if you want a more performing car or bring more people with you, choose the 180 HP
Also if you want to make faster overtakings
But for a car like this, in the normal everyday life, 130 HP are enough
What about fuel consumption?
Well, we didn't drive it on the freeway or offroad, maybe we'll do it on a longer test drive, who knows
We are just driving it on a very quiet Sunday here in Bari, with empty roads for us
The current fuel consumption, showed on the TFT display behind of the steering wheel
Is about 12.8 KM per litre
As I just mentioned, in front of my eyes there's a big virtual display
I find it extremely useful so I don't have to put my eyes away from the road direction
You'll say I still have to look for the map in the central infotainment display, but no
A setting allows me to have a map in a corner of the TFT or for its whole dimension
It's helpful because you can set everything you need, not only the navi but also media infos and so on
The overall driving visibility, for the windshield, is truly good
Well, to be honest there's a big rear view mirror with no thin framing
It's big because it has the Citroen dashcam, the Connected Cam
But don't be misleaded by my words, is not so huge, visibility is still very good
We're sitting high on this SUV, also because of the 19'' wheels
An important dimension
You were talking about the dashcam and the technology
Of course the car has the latest driving assistance systems on the market
The Keep Lane
The car reads the road lines and keeps you between them, without going out
The car controls the steering of the wheels by itself
It has the Adaptive Cruise Control
Thanks to cameras and sensors
The car detects the speed of the car in front of us and automatically sets our speed on the cruise control
In order to keep a safety distance between the two cars
The Blind Spot detection, very useful on the freeway
Maybe you're distracted, you're about to overtake a car but another car is overtaking you
What more can we say, well, this car has FWD
So it's not a real offroader
But to solve our countryside off-road situations
Citroen developed the Active Grip Control
You activate it with a rotor, usually placed near the gearbox lever in the central tunnel
With this system, the wheel's traction changes electronically
So different settings for offroad, sand
It works on the steering wheel, the gearbox, the engine and the gas pedal
Based on the specific current road conditions
A 360 degrees chance to give the driver more grip in every condition
Sadly people don't go on Sunday pic-nics any more
Maybe Citroen thought about the families who want to go for a pic-nic, storing food and stuff in the boot
By the way, during its official debut at the Motus Moving Center Group dealership, in Bari
Citroen presented its ambitious project with the C5 Aircross
Going from Milan to North Cape with the C5 Aircross
So, even if this car doesn't have 4X4, at Citroen they want to challenge themselves
With the extreme Northern Europe conditions with a FWD car
I felt suspense while you were talking, as I chose to drive into this street
I did it for a specific reason
Also thanks to the front, this car looks massive
It's 1.84m wide and 4.5m long
But in a narrow street like this one it doesn't feel so big
I hope you can see this street, we got cars parked both on left and right
And Carlo is easingly driving it
An unusual but honest city test for an SUV
Now we're on a pretty destroyed road
Looks like a planned route
Carlo, without doing it on purpose, is truly testing this car capabilities
Now it's time to hear Bart's first driving impressions
Because We Drive is a team, this is a first driving experience
So to give you a more objective opinion about this car, we'll give you more voices
Well, what do I think about this car
I think the car was developed with just one word in mind
Comfort
Comfort is everything in this car
Starting from the quality of the leather inside, very soft and comfortable on the seats
I feel like I'm home, this one has the seats massage too, amazing
Then the driving position, very high but still gives me lots of head space
From here I can control everything around me, even behind me
Because, ok, the rear window is a bit small
But not as small to make visibility a problem
Then there are handly storage boxes everywhere
Under the display there's a huge space for smartphone, I guess you can store two
Here's another box
Under my armrest
Everything so handly
Then there's a special thing I noticed
The steering wheel has almost a flat bottom, but also in the top part of it is a bit flat
For situations like this one, if I put my had upon the steering wheel, like this
I find a lot of flat surface, not a round one, so it's more comfortable for my arm
I find this shape amazing
I tried to sit in the back, the back seats are very comfortable, too
They can lean and also slide to give you more space in the boot
The boot itself is pretty big, you can't put your whole house in it, sadly
But I guess luggage for four people, for a one week holiday, it's perfect
Guys, I find it extremely comfortable, now I'm going to drive it a little bit more
Bart, we hope you enjoyed your experience in the C5 Aircross as much as we did
Sadly this experience comes to an end
We hope to drive this car for a longer time, for offroading or going to the freeway, something more serious
We hope this will be a challenging car for the already famous SUVs on the market
We're talking about VW, Audi, Opel Renault
This is a very valuable car
Prices for the 130HP diesel version start from 27K euros
Not too expensive but it will increase with optionals, I remember the 19'' wheels are optionals
If I'm not wrong, this kind of leather-Alcantara mixed interior comes as an optional
So it will increase, but as a starting price is really competitive
We invite you to discover it in person, we did and we think it passed the exam
Let us know your thoughts about the Citroen C5 Aircross in the comments below
Also comment if you have future video suggestions or further questions about this car
Of course on screen and in the description we'll leave various links to our other videos with this car
The focus about the infotainment and the full tour of this car
Subscribe to our channel and click on the bell to turn on future video notifications
Also check out our new daily content on our Facebook and Instagram accounts
See you in the next video, ciao!
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Смотреть всем! Душа моя - ты жизнь моя (ПРЕМЬЕРА КЛИПА, 2019) - Duration: 5:27.
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Vurgun 1.Bölüm-Yeni Dizi - Duration: 2:26.
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Madalina Ghenea: Cristiano Ronaldo, nozze con Matei e nuovo lavoro in Romania - Duration: 4:15.
For more infomation >> Madalina Ghenea: Cristiano Ronaldo, nozze con Matei e nuovo lavoro in Romania - Duration: 4:15. -------------------------------------------
Il Cuore di San Valentino by Tork Linstyle - Duration: 0:40.
For more infomation >> Il Cuore di San Valentino by Tork Linstyle - Duration: 0:40. -------------------------------------------
Solid Joys 152 真實的喜樂：事奉神的益處 約翰派博（中文發音版本）五月三十一日 - Duration: 3:57.
For more infomation >> Solid Joys 152 真實的喜樂：事奉神的益處 約翰派博（中文發音版本）五月三十一日 - Duration: 3:57. -------------------------------------------
xFilux - L'OVE'R - Duration: 2:48.
For more infomation >> xFilux - L'OVE'R - Duration: 2:48. -------------------------------------------
Sony Zeiss FE 35mm f/1.4 - recensione completa con esempi - Duration: 10:03. For more infomation >> Sony Zeiss FE 35mm f/1.4 - recensione completa con esempi - Duration: 10:03. -------------------------------------------
【試乗】VWポロに新世代1.5Lターボ搭載！ GTIほどではないがワインディングで気持ちいい走りを披露 - Duration: 10:39.
For more infomation >> 【試乗】VWポロに新世代1.5Lターボ搭載！ GTIほどではないがワインディングで気持ちいい走りを披露 - Duration: 10:39. -------------------------------------------
Ashwin, Unadkat Call for Face-Masks for Bowlers Following Dinda Incident - Duration: 3:42.
Ashwin, Unadkat Call for Face-Masks for Bowlers Following Dinda Incident Loading
India internationals R Ashwin and Jaydev Unadkat have called for a protective gear for the bowlers, probably a face-mask, after domestic stalwart Ashok Dinda was hit on the forehead while attempting a sharp caught-and-bowled chance during Bengal's Twenty 20 practice match at Eden Gardens
The incident happened when batsman Birender Vivek Singh hit straight and Dinda attempted the catch on his follow through but it slipped from his hand and hit his forehead
The 34-year-old lay on the ground before getting up and bowling a few more balls, before eventually leaving the ground
"About time that a "face-mask" for bowlers makes its way into all that has evolved in cricket
Its scary how this kind of incidents have become frequent in our game! Hope you good Dinda @dindaashoke
What do you say Ash bhai? @ashwinravi99," tweeted Unadkat. To which, Ashwin replied: "Been saying it since 2011, these kind of incidences never used to happen in the pre-T 20 Era
Something has surely changed , wonder what it is." Thankfully Dinda was cleared of any serious damage following scans
"Dinda looked fine as he completed the over before returning to the dressing room
As a precautionary measure, he was taken for scans. There is nothing alarming but he has been advised two days of rest," reported PTI
In the era of power hitting, even umpires have been seen using protective equipments in the limited-overs cricket
There have been incidents in the past where bowlers have taken the field with a face-mask on
Warren Barnes from Otago is someone who bowls with a custom-made mask.
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Learn to Trade Stocks
For more infomation >> Learn to Trade Stocks-------------------------------------------
You can now hire Daniel, the cleaner – who will freshen your house completely... - Duration: 2:17.
Cleaning at home can be nice – afterward.
When everything is clean and organized.
However, doing the actual cleaning is a completely different thing.
It often means a lot of sweat, complains and boredom.
But now one can avoid it, and get a nice view at the same time, writes the British site
The Mirror.
Daniel Aitken, 26, will clean your home – dressed in his birthday suit.
Daniel Aitken is not like any 26-year-old.
He runs his own company – and his company is not like any other company.
Shows up in his Birthday Suit He runs his own cleaning company, but what's
special about it is that he performs his services completely .
For just under $40 per hour, Daniel will make your place shine, be it a living room, a kitchen
or a bathroom.
"My friends think it is hilarious but I remain professional and ensure their house
is spotless when I leave," says Daniel to The Mirror.
Previously a carpenter It all began as a joke between Daniel, who
was previously a carpenter, and his parents who dared him to do it, thinking he wouldn't.
But since then Daniel started his cleaning company – and the business is booming so
fast that Daniel already got himself a new house.
"I'm aware it's a pretty random job, but I saw a gap in the market and thought
I would jump at the opportunity," says Daniel to The Mirror.
Shows up and undresses The nudity itself is not a problem for Daniel.
"I just turn up to their house with a bottle of flash, dustpan, and brush, take my clothes
off and start my shift.
I don't mind putting myself out there, I am sure it is nothing they haven't seen
before," says Daniel to The Mirror.
Would you like to have this cleaning service at your place?
Then press SHARE to pay tribute to Daniel, the entrepreneur!
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LONDON BRIDGE IS FALLING DOWN - Don't Play Like Naughty Batman - Clay Mixer and Play Doh - Duration: 5:10.
Hi guys! New episode will be released every day. Don't forget to subscribe!
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Trevor Noah Is Stealing 'Executive Time' From Trump - Duration: 9:32.
For more infomation >> Trevor Noah Is Stealing 'Executive Time' From Trump - Duration: 9:32. -------------------------------------------
Felter - another sad song - Duration: 3:15.
she said boy don't you dare touch me i don't wanna know why you don't want me
lately i been feeling ugly yeh i know nobody love me
demons creeping in my mind something's watching me tonight
take my heart don't take my life i'll get stuck inside my mind
welcome to my pain welcome to my heart
do you hear these scars sweet music in the dark
all on my own numb and alone just me and a song
i feel so wrong i will be there for you
i will stay here for you welcome to my pain
welcome to my heart do you hear these scars
sweet music in the dark angels heal me
demons fill me with all these thoughts inside my brain
i been dancing in the rain please don't say you feel my pain
why girl only want cocaine we can kick it like cobain
tell me what the fuck you know about pain woke up in the morning and feel this pain
think that i am going insane do even you know my real name?
do you even know my real name?
she said boy don't you dare touch me i wanna know why you don't want me
lately i been feeling ugly
demons creeping in my mind something's watching me tonight
i'll get stuck inside my mind i'll get stuck inside my mind
welcome to my pain
welcome to my heart do you hear these scars
sweet music in the dark
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Russia Is Attempting To Hack Our Brains - Duration: 4:57.
For more infomation >> Russia Is Attempting To Hack Our Brains - Duration: 4:57. -------------------------------------------
Unseen Footage of Bill Cosby in Prison - Duration: 1:55.
For more infomation >> Unseen Footage of Bill Cosby in Prison - Duration: 1:55. -------------------------------------------
Trump 2020: Stolen Slogans - Duration: 0:58.
For more infomation >> Trump 2020: Stolen Slogans - Duration: 0:58. -------------------------------------------
ఒత్తిడి తగ్గడానికి,అదిగమించడానికి నేను ఆచరించే అలవాట్లు,పద్దతులు # Simply Sravani - Duration: 8:57.
hello everyone...welcome to my channel...
thank you for watching
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Pretend Play Ride on Toy Sportbike With Toys 완구로 장난감 Sportbike에서 놀이 놀이를 가장합니다 - Duration: 10:42.
For more infomation >> Pretend Play Ride on Toy Sportbike With Toys 완구로 장난감 Sportbike에서 놀이 놀이를 가장합니다 - Duration: 10:42. -------------------------------------------
How Detroit Lions hired Darrell Bevell after Orlando 'secret interview' - Duration: 6:21.
CLOSE NFL Network analyst and former Seahawks fullback Michael Robinson speaks with Free Press sports writer Dave Birkett on Wednesday, Jan
30, 2019. Dave Birkett, Detroit Free Press CONNECTTWEETLINKEDINCOMMENTEMAILMOREHis offenses have always been good at running the football, and now that he's calling plays for the Detroit Lions, Darrell Bevell said that won't change
"We're going to run the football, we're going to run it really well," Bevell promised Monday at a fan forum for season-ticket holders at Ford Field
But beyond that, Bevell, who replaced Jim Bob Cooter as Lions offensive coordinator last month, said it's too early to know what his offense will look like this fall because he's still familiarizing himself with his new personnel
"I hope it's one that scores points," Bevell said. "That's the first thing we need to do
But right now, it's still something that we're trying to build. It's easy to say what we want to do in the run game, what we want to do in the pass game, but we need to build around players
"That approach isn't exactly a novel one. It's something most coaches espouse at all levels of sport
But that's part of what drew the Lions to Bevell when they set out to revamp their offense last month
Bevell said he reached out to Lions coach Matt Patricia about the job and had "a little secret interview down in Orlando" in January
More on Bevell: Lions: Why 'frickin Darrell Bevell' is built to winThe interview lasted a day and a half and included general manager Bob Quinn – new special-teams coordinator John Bonamego also interviewed with the pair around the same time in Orlando – and Bevell said the process was extremely thorough and that he and Patricia quickly learned they were on the same page philosophically
"There really wasn't anything they didn't touch," Bevell said. "We went from the beginning to end about my philosophy, what I believe in, also what they believed in and it meshed very well
Where they saw kind of each position and each position going. It was just a real thorough process
"Quinn said in early January the Lions wanted a coordinator who would bring balance to the offense and be adaptable enough to change his approach based on the opponent
Patricia declined to talk about Bevell when asked about the hire at the Senior Bowl last month, but Bevell explained Monday that balance is a bit of a misnomer in the NFL
"It's no secret where I've been, we've been able to run the football and we've been able to run it at a high level," he said
"We've had great running backs with Adrian Petersons, Chester Taylors, Ahman Greens, Marshawn Lynch
So many great running backs, and that's something I believe in wholeheartedly but just it doesn't mean that you need to be balanced with run and pass
We're going to run the football, we're going to run it really well, but we want to make sure that we're doing all different kinds of things and accentuating what our players do well
" Detroit Lions running back Kerryon Johnson celebrates a touchdown with quarterback Matthew Stafford (9) during the first half of an NFL football game against the Chicago Bears Sunday, Nov
11, 2018, in Chicago. (AP Photo/David Banks) (Photo: The Associated Press)Nine of the Lions' 11 offensive starters from last season are under contract for 2019, though the team needs to replace slot receiver Golden Tate, find a new starting tight end (or two) and perhaps a right guard to replace T
J. Lang.Kerryon Johnson, who ran for a team-high 641 yards as a rookie and finished second in the NFL at 5
4 yards per carry, stands to benefit the most from Bevell's addition as Bevell's offenses in Minnesota (2006-10) and Seattle (2011-17) ranked in the top 10 in the league in rushing seven times
Johnson told the Free Press in January he was excited about the hire, and Bevell said he shares that sentiment about working with Johnson
"I had a great conversation with him on the phone," Bevell said. "He's really got himself put together and he's a smart young man who knows exactly what his plan is
I was asking him where you're going to be, what are you going to do in this week, how about this week? When you coming back up here? He had all the answers and he's really squared away that way
But his talent, we were able to see that a little bit last year on the field." Oct 23, 2016; Glendale, AZ, USA; Seattle Seahawks offensive coordinator Darrell Bevell against the Arizona Cardinals at University of Phoenix Stadium
The game ended in a 6-6 tie after overtime. Mandatory Credit: Mark J. Rebilas-USA TODAY Sports (Photo: Mark J
Rebilas-USA TODAY Sports)Bevell said he's been in touch with Lions quarterback Matthew Stafford as well and that while he wants to do things Stafford has been successful at, he also talked to Stafford "about stretching him a little bit, maybe put him in positions that he hasn't been before and just be able to push our offense to new heights
""We're going to do what Kerryon does well, we're going to do what our wide receivers do well, what Matthew does well," Bevell said
"We got to make sure we take care of the quarterback by protecting him. So at this point to make big bold statements, it's a little bit early because we need to discover a little bit more about our personnel
"Contact Dave Birkett at dbirkett@freepress.com. Follow him on Twitter @davebirkett
Read more on the Detroit Lions and sign up for our Lions newsletter. CONNECTTWEETLINKEDINCOMMENTEMAILMORE
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How To Save Money On Valentine's Day - Duration: 0:46.
Chocolates.
Flowers.
Dinners at fancy restaurants.
Yes, romancing your sweetie on Valentine's Day can be quite the pricey proposition!
That's why Andrew Eisen is here to share what you can do with your significant other to
save money on Valentine's Day.
Break up.
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Смотреть всем! Душа моя - ты жизнь моя (ПРЕМЬЕРА КЛИПА, 2019) - Duration: 5:27. For more infomation >> Смотреть всем! Душа моя - ты жизнь моя (ПРЕМЬЕРА КЛИПА, 2019) - Duration: 5:27. -------------------------------------------
📌 Новости сегодня 14.02.2019 - Duration: 11:41.
For more infomation >> 📌 Новости сегодня 14.02.2019 - Duration: 11:41. -------------------------------------------
Ron Skeans, BBC Cameraman: 5 Fast Facts You Need to Know | Heavy.com - Duration: 7:55.
Ron Skeans, BBC Cameraman: 5 Fast Facts You Need to Know | Heavy.com
Ron Skeans, a BBC cameraman, was attacked at a Donald Trump rally in El Paso, Texas, by a man wearing a "Make America Great Again" hat.
Speaking to the BBC, Skeans said he received a "very hard shove" from his blindside.
Skeans said, "I didn't know what was going on.".
At the time of the incident, President Trump gave Skeans a thumbs-up gesture and said, "You all right? Everything OK? OK, thank you" after he noticed the commotion.
The president has repeatedly insulted the media at rallies, on Twitter and during press conferences.
Trump has referred to the media as "the enemy of the people" while also saying that the coverage of him and his administration has been "fake news.".
Here's what you need to know:.
A Trump Campaign Official Has Suggested that the Attacker Was Drunk.
Just attended my first @realDonaldTrump rally where my colleague BBC cameraman Rob Skeans was attacked by a Trump supporter.
The crowd had been whipped up into a frenzy against the media by Trump and other speakers all night #TrumpElPaso pic.twitter.com/Oiw8osPms3 — Eleanor Montague (@EleanorMontague) February 12, 2019 .
A Trump campaign official suggested that Skeans' attacker may have been drunk in a statement to the BBC.
Video of the attack shows the man saying, "CNN sucks" and "F*** You!" as he his dragged away.
To all those who asked after the cameraman – Ron is fine.
Thanks for asking # pic.twitter.com/JB7Tq21DX6 — Eleanor Montague (@EleanorMontague) February 12, 2019 .
A BBC spokesman told the Guardian, "The man was removed by security and Ron is fine.
The president could see the incident and checked with us that all was ok.
It is clearly unacceptable for any of our staff to be attacked for doing their job." The Guardian article mentions that as the man was being taken away, "some in the crowd" began to chant, "Let him go.".
Skeans' Producer Called it an 'Incredibly Violent Attack'.
Skeans was accompanied by BBC's Washington producer and correspondent, Eleanor Montague and Gary O'Donoghue.
Montague told the network that Skeans "got the brunt" of the Trump supporters attack and that he was eventually wrestled away by a blogger who was nearby.
Montague said, "It was an incredibly violent attack.
Fortunately, our cameraman is fine, he is made of stern stuff.".
Gary O'Donoghue also told the BBC, "This is a constant feature of these rallies – a goading of the crowds against the media." O'Donoghue went on to say that he has been "spat at" during previous Trump events.
Prior to the attack, Trump said, "We have suffered a totally dishonest media and we've won and it's driving them crazy, driving them crazy.
It's driving them crazy but look at them.
They still come.".
Skeans Has Worked for the BBC for 25 Years.
According to his LinkedIn page, Skeans has worked for the BBC since January 1994.
He has been a cameraman and editor with the network since January 2003 and is based in the Washington D.C.
Metro Area.
Skeans is listed as a member of the White House News Photographers Association.
On his Facebook page, Skeans says that he is from Dayton, Ohio and attended Meadowvale High School and the International School of Broadcasting.
Skeans Was on Scene at the Capital Gazette Shooting.
In June 2018, Skeans was one of the first reported on the scene at the Capital Gazette shooting in Annapolis, Maryland.
Jarrod Harris is alleged to have entered the newsroom and shot-and-killed five newspaper employees in a rage over a 2011 story about his alleged harassment of high school classmates.
The Columbia Journalism Review attributed that attack, in part, to President Trump's constant attacks on the media.
In the lead-up to the attack, Trump supporter Milo Yiannopoulos had texted reporters saying "can't wait for vigilante squads to start gunning journalists down on sight.
" Yiannopoulos later said the text messages were intended as a joke.
Protesters Repeatedly Tried to Disrupt Trump's El Paso Rally.
The attack on Skeans was not the only disruption during Trump's rally.
During the event, various protesters interrupted proceedings.
After one protester was removed, Trump said, "Where do these people come from? They go back to Mommy.
They get punished when they get home." Trump claimed that the local fire department had allowed 10,000 people into the 8,000 capacity venue.
The Guardian, citing a local fire official, said that 6,500 people were inside the rally.
Nearby, former Texas congressman Beto O'Rourke held a counter rally.
READ NEXT: Michigan School Teachers Admit to Making Adult Movies on the Side.
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Royal Uk - Kate Middleton wore the most incredible pink princess dress last night - Duration: 2:07.
WOWZA! We have to applaud the stylists that are currently working with members of the royal family
99 percent of the time, they all look absolutely amazing. And last night was absolutely no exception
Last night, the flawless Kate Middleton attended a 100 Women in Finance event at the Victoria & Albert Museum in London
The Duchess wore the most amazing pink Gucci gown, completely fit for a Princess
It was a floor length, tulle number in an ashy pink, and it was absolutely incredible
Kate accessorised this beautiful look with a pair of Oscar de la Renta pumps and a beautiful pair of earrings by Kiki McDonough
The same earrings she wore to her sister's wedding, FYI. She carried a simple burgundy velvet clutch, matching the thin belt on the dress
Kate gave a wonderful speech at the event, where she called the Women in Finance Initiative "inspiring"
After the gala, Kate was photographed leaving the museum with a lovely bouquet of flowers (perhaps an early Valentine's Day gift?) We're celebrating Valentine's Day on Girls With Goals this week! Don't forget you can catch up on all episodes on Spotify now
We're celebrating Valentine's Day on Girls With Goals this week! Don't forget you can catch up on all episodes on Spotify now
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「MV HẬU VALENTINE 」NHẬT KÝ KIM NGƯU (OFFICIAL MV 4K)- KAI FT. JIM.T #NKKN - Duration: 3:10.
For more infomation >> 「MV HẬU VALENTINE 」NHẬT KÝ KIM NGƯU (OFFICIAL MV 4K)- KAI FT. JIM.T #NKKN - Duration: 3:10. -------------------------------------------
Cute and Funny Dog Video Compilation - Dog Funny - Duration: 10:47.
Thank you for watching, subscribe to follow the latest videos
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시장에 반려견 내다 파는 할아버지 말리려 무릎꿇고 애원한 소년 - Duration: 3:00.
"할아버지, 강아지는 제 동생과도 같아요.
제발 우리가 계속 키워요" 강아지를 내다파려는 할아버지를 본 소년은 무릎을 꿇고 진심을 다해 애원했다.
지난 12일(현지 시간) 중국 매체 시나는 기르던 강아지들을 내다 팔려는 할아버지를 보고 오열하는 손자의 안타까운 모습을 사진과 함께 보도했다.
시골에서 강아지들을 키우며 살던 한 노인은 최근 가슴 아픈 결정을 내려야만 했다.
생계가 어려워지는 바람에 기르던 강아지 중 세 마리를 장마당에 내다 팔기로 한 것이다.
가족처럼 지내던 녀석들과 헤어지는 일은 물론 노인에게도 가슴 아픈 일이었다.
하지만 그는 이미 여러 마리의 강아지를 더 돌보고 있었던 터라 사료값을 내는 것도 버거운 상황이었다.
그렇게 노인이 목줄을 맨 강아지들과 함께 시장에 나가려고 할 때,
어린 손자가 나타나 갑자기 할아버지를 막아서고 울기 시작했다.
평소 강아지들을 무척 아끼고 사랑했던 손자는 정든 녀석들과 헤어지기 싫어 오열했다.
이어서 "제발 강아지들을 내다 팔지 말라"며 할아버지의 바짓가랑이를 잡고 애원해 지켜보는 노인의 마음을 아프게 했다.
하지만 노인으로서도 오랜 고민 끝에 내린 결정이라 번복할 수 없었다. 마음이 아픈 노인은 씁쓸하게 웃기만 했다.
노인은 우는 손자의 얼굴을 쓰다듬으며 위로했고,
손자는 강아지들의 목줄을 꼭 잡은 채 놓을 줄을 몰랐다.
해당 사진을 접한 누리꾼들은 "아이가 저렇게까지 애원하면 팔지 않고 함께 살면 안 되나"라며 안타깝다는 반응을 내놨다.
가족처럼 아끼던 반려동물마저 팔아야 할 정도로 생활이 넉넉하지 않다면 어쩔 수 없다는 의견이었다.
하지만 일부 누리꾼은 노인의 입장에 공감했다.
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Best-selling Products from AliExpress for $5 or less | 2019 Gadgets - Duration: 5:15.
People like us buy things like these.
There is a reason why I always go over the products that you buy through my affiliate
links: it gives me a lot of insight on what the buyers want, and I always find new neat
things this way.
The new video with the things that I own is in progress right now, so don't worry: it's
coming next week, but today we are going to see the best-selling items from the last few
months under $5.
And to make it even more interesting, I have ordered all of the things from this list and
I will make an unboxing and testing video once they all arrive.
But right now, let's roll!
This cat phone holder is a new, completely revolutionary way to hold your smartphone
or tablet.
With a gentle touch of their soft paws they gently crouch from the back, eager to help.
Never mind the suction cup on the back, because these kitties will stick to your phone making
sure it stays in the desired position.
You can pick your favourite one from the 6 available breeds, or grab a few at an attractive
price of less than $1 per piece.
The second item is a soft cloth that has been purchased over 24,000 times.
It seems to be very popular among the people who visit my site or watch the channel, and
if you have one of these please weigh in on how good or mediocre it really is.
You can wipe dishes or your hands with it and you wouldn't have to worry which one
is for which if you get them in different colors.
If your phone has only one plug for both charging and the headphones, and if your favorite earphones
come with a regular AUX plug, no worries, this thing is everything you have ever dreamed
about.
Stop worrying about not being able to listen to your favourite tunes while your phone is
being charged for less than $2.
Don't you just hate it when you go kayaking and all your stuff gets randomly wet from
a passing blue whale?
Or maybe if you like to camp or hike and want to keep your things dry and safely stored
in a nifty container?
Here is a selection of dry bags that come in 3 different sizes of 8, 40 and a whopping
70 liters.
The largest option is quite roomy and can fit a lot of stuff in it, and when you're
not using it, it can be conveniently tucked away in a pocket.
As Bartonez123 kindly noted, a cheap watch can be used to try out styles as they don't
keep time as good, which can easily be expected from a $3 piece, and we will see how they
really work once I get them.
I would put this purchase into a gamble category, but having said that I don't really use
mechanical watches to tell time, for me they are nothing more than a fashion piece, and
I shall note that these look quite good.
Also, thanks to lord raghuvansi who suggested a few tested brands that I will link in the
description.
The last one is sold by a store with a very good name, which, well it really speaks for
itself.
A bendable phone holder can be used for a variety of reasons when your phone needs to
be in a certain position and at a certain height while you eat, study, or work on a
very important assignment.
A selfie light that has been purchased nearly 23,000 times is a bit concerning to me, but
I can see how it can become handy in dimly lit environments.
This one has three different lighting modes, and there are a few designs that either clip
on on that you can plug into the AUX output of your smartphone or tablet, although I hope
that nobody here uses tablets to take pictures because it looks ridiculous.
If a car that you drive or happen to ride in doesn't have Bluetooth or if the AUX
cord is just too short to reach to the back seat, a cheap and convenient way to get around
it, apart from getting a longer AUX cable is an inexpensive Bluetooth dongle.
A good way to keep your cords organized without needing one of these, of which I actually
have a few, is this wire organizer pouch that can come handy for travelling or just general
home use purposes.
A crank charger is something that only needs to be used during the emergencies, as it will
take approximately 8 to 12 hours to completely charge an average phone battery, but when
that's the absolute only option, it should do.
3-In-1 lens adapters.
These attach to your phone and adjust the viewing angle of your camera.
There are three different ones, fish-eye, wide view and macro.
Here are some pictures that I took with the fish eye, which is my favourite of the three.
The wide view and macro are attached to each other.
It comes with a small carrying pouch so that you can lose all three of them at the same
time.
The next item is a flashlight with some extra features.
At the end of the bulb is a magnet which can help retrieve lost metallic items from hard
to reach places, and to make the reach longer it has a telescopic antenna inside that can
extend it up to 56 cm, which is roughly 1 ft and 10 in.
But wait, it gets better: the end is bendable.
A magnetic charger with an LED light indicator.
There are options for all three types of plugs, 8-pin for iPhones, as well as micro-USB and
USB type-C. The magnetic connection is strong enough for the phone to hang down from it.
The LED light will make it easier to locate the cable when it's dark.
These playing cards take the 14th place in our list.
There are a few different design options to pick from.
The cards have a protective film on them that makes them resistant to moisture.
The second option glows in dark.
Number 14 in this list are door-mounted racks that are meant for spices.
These racks will help you have all your spices readily available for consumption or immediate
use right when you open the cabinet door, and some people also use them for bathroom
needs, as in to put their bathroom items on them.
But I suppose you can also use them to wipe with, I just can't say if it would be very
comfortable.
To see more best-selling products with 1,000 and more orders head over to our website or
click on this playlist, or watch the video that YouTube AI picks for you to see.
Cheers!
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Bitcoin, chi garantisce e chi li emette? Giacomo Zucco "Understanding Bitcoin" - Duration: 8:35.
We have answered the question "Where?"with the concept of decentralisation and open source system
. But now we have to answer the question "Who?", in particular, in a file sharing system like BitTorrent,
it is not important who has modified the files, who is sending us a song, who is sending us a video, it is completely irrelevant
If each of us keeps some pieces of information, it is not important to know who is the author of the changes in this information,
we are not interested in knowing that a film was actually uploaded on the network by this or that person.
However, in a computer system that has to manage the exchange of value and the exchange of money, the issue is not so simple.
The question "Who?" becomes fundamental, in particular, it is very important to know that who updated the database, the financial ledger,
perhaps taking money from the account that corresponds to me, and adding money to the account that corresponds to them, did so under my supervision and my authorisation.
Otherwise in a system like BitTorrent, where everyone keeps part of the data, but where there is no way to certify who has the authority to change that data,
who has the authority to update the financial register, in such a system, anybody could basically take anyone's money.
With physical gold for example, we can't simply decide that a certain nugget, or a certain ingot, or a certain coin, travels from one hand and arrives in our hands with a single move
Whereas with a distributed ledger, where there is no central control, anyone could propagate a manipulated, altered, different copy of the ledger, where the value has been moved from one person to another.
This is where bitcoin introduces a new technology, it is not yet the so-called blockchain technology,
it is a much older technology that has been around since the 80's, maybe even a little earlier, it is the so-called Digital Signature.
Basically, what happens is that every time a person wants to change the content of the bitcoin financial ledger,
that person must also sign the alteration with a process that is called digital signature,
which is a little different from the physical signature that we do on documents, but has more or less the same purpose.
The idea is that the signature is easy to verify for anyone and difficult to replicate for those who do not have, for example, my handwriting.
In the case of digital signature we use a technology called asymmetric cryptography, there are basically two large numbers, one of these numbers is called private,
secret or cryptographic key, and it is a number that we must keep protected and absolutely private.
And then there is another number, called public key, which is a sort of, let's say, public address.
Even if it is not a correct metaphor, we could say that the public key is a bit like the IBAN of a bank account or the email address of an email box.
This public number must be known to anyone who wants to send us value. Whereas the private number, the secret key, is the only thing that allows to move that value. How?
There is a mathematical relationship between these two numbers that works in such a way as to allow any of us who are
in possession of the private key to take a statement, a text or a message, and to sign it.
This applies a mathematical function which is done on the basis of the secret key and that produces something that in cryptography is called a witness,
which is a signature that can be verified by anyone who has the text and our public key at their disposal but without sharing with them our private key.
This means that we can hold a secret key, associated with our public address, which allows us to change to whom and what we are sending within bitcoin's financial ledger, but without there being a central party.
With PayPal, VISA or Venmo, there is absolutely no need for this type of advanced technology.
PayPal has a central server that decides who can transfer and when they can transfer, and we connect by providing our username and password, but there is no need for 2-key encryption.
This is a requirement that has been implemented not only in the bitcoin system, but also in systems before bitcoin, for example, in 1990 Ecash was created as a value exchange system based on public key cryptography.
So it's nothing new, not invented by Satoshi Nakamoto in 2008, it's something pre-existing and very important.
This is where we understand that the term blockchain is not the only important term in the technology that underlies bitcoin.
The digital signature is equally important and is a fundamental part that answers the question "Who can transfer bitcoin?"
It is interesting to note that the answer to the question "Where?" provides for a substantial opening, a sharing, that is,
everyone must have the information of all since decentralisation and open source are characteristics that allow everyone to publish and share information.
Whereas the answer to the question "Who?" foresees the need to keep a certain information very secret, it is the opposite of open source, decentralisation and file sharing.
The security of bitcoin depends both on the distribution of the bitcoin program, its source, its data and its financial ledger, as well as on the absolute secrecy and security of the individual users' private keys.
We have said that these private keys are connected by a unidirectional mathematical function to the public bitcoin address, however,
the address is not really a public key, the bitcoin address is so to speak the cryptographic fingerprint of a public key, and we can not really say that a bitcoin address resembles the IBAN of a bank,
because a bank's IBAN is used repeatedly, whereas, for security reasons, bitcoin addresses must be used only once.
They are given to the payer to pay, and then are forgotten until they are spent and the next time a new address is used to request more bitcoins.
So, to make things easier, these cryptographic traces of the public key are like single-use IBANs.
However, this implies that it is necessary to move from subjects such as those we have dealt with in the first videos,
related to the history of currency, economics, finance, politics, to very technical matters related to computer security.
In order to be able to use bitcoin safely, or to allow their users to use bitcoin safely, individuals or companies that are making bitcoin products and services,
must learn about cyber-security, that is, all those techniques and strategies that allow to keep this key hidden.
If someone has your private key, that someone can move your bitcoins, claiming to be you,
without anyone stopping them because there is no legal name associated with a single bitcoin address and there is no document request before moving bitcoins.
Anyone, by their very nature, can write on this decentralised ledger.
Only those who have the key can move value, this means that if you lose your key, because you hid it too well, so well that even you can no longer find it, you can no longer move your bitcoins.
There is no customer service to call, there is no emergency security question, if you no longer have that key then your bitcoins can no longer be moved.
A bit like if you lose a golden nugget, you can't claim it back from anyone, you lost it, you don't have it anymore, almost like a physical object.
Similarly, if you leave a gold nugget on the bar counter and move away, most likely you will not find that gold nugget when you return.
If you think about it, this is very different from a banking system or a centralised online payment system.
In those cases you can always ask for help, there's backup if you lose the key, or you can always ask to cancel a transaction if someone has stolen your credit card for example.
Bitcoin guarantees a lot of freedom but this freedom comes at the price of a lot of responsibility, basically the user must learn to manage their keys.
It's a kind of competence that is required even by electronics devices called hardware wallets, which are devices that try to reduce the area of attack through which external entities can learn about our private keys.
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