The field of science is capable of some amazing things, mostly because it's filled with all
the Albert Einsteins and Doogie Howsers the world has produced over the centuries. But
it may shock you that some of the most mundane, everyday concepts are as big a mystery to
scientists as they are to the average toddler. Well, if you count K.N.D. , dexter, jimmy
neutron then life itself will be really confusing. 5 Simple Questions You Won't Believe Science
Can't Answer
Things like ...5. Laughter, why do we do it? Despite the fact that it's something we do
every day, scientists aren't entirely sure why humans laugh and there are only a few
species on the planet that do it. Despite another fact that many other animals also
have complex social structures like our own, they appear to be largely humourless. Don't
kill me laughter isn't necessarily anything to do
with humour, anyone who has politely sat through their father-in-law's jokes will attest to
that. It is reckoned that only around 20% of laughter is in response to an actual funny
joke or a stimulus like tickling, the rest is made up of the polite guffaws and awkward
giggles that punctuate conversation without anything really being funny. (don't lie
to me I know I'm in that category) It is also thought that perhaps laughter is
used as a way of controlling the behaviour in our social groups. The difference between
"laughing with" and "laughing at" , could be the key to this.
When you laugh at someone, you are essentially telling them that their behaviour is not acceptable
to your group, either pushing them out or forcing them to alter it, whereas "laughing
with" is a signal that the behaviour is accepted within the group.
The fact that humour plays a role in sexual selection - that women love a sense of humour
- could be the reason for its prevalence in humans as it would be a successful trait passed
down through generations. Too bad all topics aren't about that though.
And that's it for laughter I guess, psychologist scientists have better things to do. (more
science!!) 4
Why is Ice Slippery Saying that ice is slippery is like saying
that water is wet -- it's something we've known for as long as we can be said to have
known anything. Presumably, humans as a species knew ice was slippery before we knew fire
was hot, or that it existed. But ask anyone why, and they won't be able to give you any better
explanation than one of those cave people would have.
Our intern Thoog suspects that either evil spirits or flash thawing is the culprit.
Although at this point, most of you are probably screaming "It's water, stupid!" -- and that's
more or less the answer that scientists have always concluded. Even in some modern textbooks
you can still read the popular explanation: Unlike most substances, ice expands when
it freezes. So when you walk on it, you're actually compacting it back into slippery
old water. Sounds simple, right? Experiments have shown that your puny body doesn't exert
nearly enough pressure on ice to squeeze even a tiny bit of it into liquid.
Science: "We don't know ... ice fairies, maybe? (hey listen! I have the answer) *Zelda rap*
hey listen you annoying- " There are some competing theories, though
none of them are better than the others. One popular theory is that ice is not actually
slippery at all. Though this sounds like something that science, exasperated, would proclaim
while waving a gun in your face to make you stop asking stupid questions, a guy named
Dr. Salmeron thinks that the roughness on the surface of ice is actually so high that,
ironically, it becomes slippery when you flash-melt it due to the sheer friction you're applying
to it. Of course, in the same breath, Dr. Salmeron
admits he may be talking out of his ass. (sigh) or it's so smooth of a surface, that
there's no friction at all. (it's complicated!!)
3. why does boiling water freeze faster than cold water
the Mpemba effect. we should begin by stating precisely what we mean by the Mpemba effect.
…. Hm shorter version? (shorter version) shorter version it is!
2 bottles one really hot, and other room temperature. Cooling both at the same time, the hotter
one freezes first. That is the mpemba effect.
Why hasn't modern science answered this seemingly simple question about cooling water?
The main problem is that the time it takes water to freeze is highly sensitive to a number
of details in the experimental setup, such as the shape and size of the container, the
shape and size of the refrigeration unit, the gas and impurity content of the water,
how the time of freezing is defined, this guy can go on but -. Because of this sensitivity,
while experiments have generally agreed that the Mpemba effect occurs, they disagree over
the conditions under which it occurs, and thus about why it occurs.
2 How a Bicycle Works Bicycles have been around since the early
19th century, and its basic design has actually changed relatively little for almost 200 years.
You always had two wheels, a frame to connect them and a handlebar for steering, and you
required a person completely devoid of shame to ride on it. It turns out skintight short-shorts
are an improvement in bicycle fashion. At the very least, you'd think that the guy who
invented the damn thing knew what he was doing, but after more than a century of research,
science has been forced to conclude that he was probably some kind of sorcerer. The first
bicycles were invented, not through any kind of scientific procedure, but by dumb old trial
and error. Even modern bike design schools admit that it's not engineering or computer knowledge
that make a good bike designer, but instead "intuition and experience."
So, what happens when you ask scientists exactly what makes a bicycle stable? Or what keeps
it going? Or how people ride them? Well, odds are they'll either nervously tell you that
they have cookies in the oven and run out on you, or if they're honest, they'll give
you a pretty big shrug. In fact, top bike researchers admit that, even though some people
have come up with equations on how to ride a bike or how they think bikes work, those
equations are pretty much fancy icing on top of a cake of cluelessness. One Cornell researcher even
says that absolutely nobody has ever come to an intuitive understanding of what makes
a bicycle do its thing. Science: "We've narrowed it down to either
spoke fairies or wheel fairies." For ages, scientists assumed that the gyroscopic
effect (the force that keeps a spinning top from falling over) was the key for a bike's
balance. But nope! In the '70s, a scientist disproved that theory.
So then, scientists thought that the principal factor for a bike's stability was something
called the caster effect, or trail (something to do with the front wheel's angle away from
the frame). But just this year, top bikeologists from Cornell and other universities formed
an angry scientific mob, then torched and pitchforked that theory as well. They did
this by building a goofy-looking bike that has no gyroscopic effect and no trail, but
manages to stay upright nonetheless. "Look, Ma! No physics!"
So scientists are essentially back at square one, as things such as steering geometry and
the physics of stability are all going back to the drawing board. At least you can be
secure in the knowledge that the humiliation you feel when you ride a bike is akin to the
humiliation science feels when it's asked how a bike stays up.
Is he around? (*checks area*) let me try. -(it's complicated!!) go away!!
Odds are pretty high that you're watching this video while you're at work (… work
at home counts). And once you're done wasting time with Crazy Random Cool(very big thanks
if you're still here), odds are you'll continue to waste time with something else. And conveniently
at your fingertips is one of the most played and addictive games of all time, one that
you don't even need a partner for: 1
How do you Beat Solitaire
"Mrs. Jones in the cancer ward can wait. I just got the fourth ace!" (more importantly
who knows solitare? … I'm starting to regret this question as I'm talking to a
lot of adults who grew up with 95) More specifically, Klondike solitaire, which
is as familiar to career procrastinators as Minesweeper. All of us at some point, usually
around our 10th consecutive loss, have buckled down and tried to figure out the secret. After
all, if Rain Man can break Vegas, surely you can beat a goddamn Windows game.
Maybe it has something to do with the fact that scientists get distracted when "studying"
solitaire, or the fact that solitaire may have evolved from freaking black magic, but
pretty much every damn thing about the game has remained a mystery since the 1800s. In
fact, big-time mathematicians openly admit that it's one of the "embarrassments of applied
mathematics" that almost nothing about the standard Klondike solitaire is currently known.
For example, when the math geeks tried to find the odds of winning, they ran into a
problem. They couldn't even get a fixed idea of how many winning hands are possible. The
mathematicians came up with an approximate percentage of how many hands are winnable
that was somewhere around 80 or 90 percent. But think about it -- when you play solitaire,
do you win at least eight out of every 10 hands? Either you have the lamest X-Men superpower
ever, or you're lying. Now, there's some wild-ass guesses out there
as to what the actual odds of winning Klondike are, even if many computer people agree that
you don't have a good chance of winning at the game.
But consider that science has already cracked the secrets to the seemingly much more complicated
game of Monopoly. But solitaire? It's simply beyond our powers of understanding.
Then again, if we actually did know how to beat solitaire, we'd have to go back to work
faster. Why are we asking science? I'm gonna ask
the programmers how they made it (NO!! it's complicated, Complicated!)
Thank you all again for more embarrassment the scientists get, you have questions science
hasn't answered yet? Share your thoughts and Subscribe for more (this scientist thanks
you for that). I'm gonna go play another round of solitare.
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