Hi, this is Kate from MinuteEarth.
NUCLEAR APOCALYPSE… would be pretty bad... so in the 1990s, most of the world's governments
formally agreed to a deal to outlaw tests of nuclear weapons.
To hold each other accountable, they set up a global network of sensors that pick up the
low-frequency waves that nuclear explosions send over long distances.
With a few notable exceptions, most countries adhere to the rules, so nuclear tests are
pretty rare and the network mostly picks up signals from other sources, like volcanoes...rocket
explosions...ship engines...and even the vibrations of icebergs.
This background noise is a headache for the people listening for nuclear explosions, but
it's a boon for lots of other listeners, who can also access the data, with permission.
For instance, instead of chasing down whales and attaching tracking devices to them, scientists
can use their songs to estimate their locations.
By listening to all the meteoroids that travel through Earth's atmosphere, we've learned
that there are way more out there than what we can see, suggesting that the risk of a
city-destroying meteorite is as much as ten times higher than we earlier believed.
By monitoring active volcanoes, or even setting off controlled explosions, and measuring how
little of the energy boomerangs back to the sensors, scientists have found that the winds
way above Earth's surface are faster and more variable than we thought, which is part
of the reason our current weather forecasts aren't that great.
And speaking of forecasts, data from the network's sensors also help us locate earthquake epicenters
to provide better warnings about potential tsunamis.
The system may have been built to detect nuclear tests, but it's led to an explosion of knowledge
about our planet.
And to a lot more questions - like what is responsible for all of the sound waves that
we haven't identified yet.
This video was sponsored by the Preparatory Commission For The Nuclear-Test-Ban Treaty
Organization, or CTBTO, with financial support from the European Union.
CTBTO has been mandated by 183 nations to monitor for illegal nuclear tests.
If you're a researcher interested in using data from CTBTO's monitoring system to further
expand our knowledge about the world, contact the organization at ctbto.org.
Thanks to CTBTO for their sponsorship - and for helping keep the world safe from nuclear
weapons.
And thanks to our friend Jesse Agar of This Place for illustrating this video.
For more infomation >> Reunião de Pauta: "Lula e Temer juntos" - Duration: 29:17. 
For more infomation >> COLOQUEI FOGO NO GUARDA-CHUVA E FIQUEI EMBAIXO DESAFIO #63 - Duration: 13:30. 
For more infomation >> brTT e o meu Nunu é sucesso (participação do Robo, Minerva e Brucer) - Duration: 23:27. 
For more infomation >> Embraer e a História Aeronáutica na Mostra Design na Aviação Brasileira - Duration: 6:49. 
For more infomation >> Como arrasar no Make 'cata boy' | Sabrina Sato e Mariana Saad - Duration: 6:31. 
For more infomation >> TROLLEI MINHA NAMORADA E DEU TRETA - Duration: 5:29. 
For more infomation >> Khair e Ramzan on Express News - Iftar Transmission - Part 3 - 21st June 2017 - 25th Ramzan - Duration: 21:36. 
For more infomation >> Unboxing e test Live - Il Santone In Live 20 - - Duration: 43:14. 
For more infomation >> HAVAIANAS MAIS CARA DO MUNDO |COMPRAS NO EXTERIOR | Henry e Denise | Ep. 103 - Duration: 11:09. 
For more infomation >> PES 2017 RUMO AO ESTRELATO #115 -O CAMISA 10 AGORA E LENDA E MELHOR DO MUNDO?!! - Duration: 12:33. 
For more infomation >> Artilheiro do Galo volta contra o Sport e o golaço da vitória - Duration: 0:49. 
For more infomation >> TALK AND DRIVE: COMO SÃO AS CASAS E PREÇOS EM SQUAMISH | Detached, townhomes, apartamentos (2017) - Duration: 10:10. 
For more infomation >> NICKELBACK E DISCO NOVO HORRÍVEL | VLOG SAGAZ - Duration: 5:00. 
For more infomation >> Bulevardi i Ri pret vizitorët, që ditën e parë pas hapjes - Duration: 1:37. 
For more infomation >> FACHIN afasta LULA de MORO e JANOT defende para CONTINUAREM acobertando o AÇOUGUEIRO de LULA. - Duration: 4:08. 
For more infomation >> Como é a profissão de DUBLÊ DE CINEMA | Pipoca e Nanquim Especial #50 - Duration: 20:02. 
For more infomation >> Necessidades e Vontades, Qual a Diferença? - Paizinho, Vírgula! - Duration: 4:25. 
For more infomation >> Sorrindo pra Vida - Mantenhamos nossa coragem e nossa fé - 21/06/2017 - Duration: 11:29. 
For more infomation >> 🔵 Reviravolta: Juju Salimeni conta toda verdade sobre suposta traição e impressiona - Duration: 1:30. 
For more infomation >> Prokuroria assesi të ftojë për të dhënë dëshminë, deputetët e VMRO-së - Duration: 2:01. 
For more infomation >> Renault Clio 1.5 dCi Night&Day (R-LINK/Airco/Cruise/PDC/16''LMV) - Duration: 0:59. 
For more infomation >> MORNING JOE 6/21/17, GOP senator on health bill - Duration: 13:32. 
For more infomation >> Kia cee'd 1.0 T-GDi ComfortPlusLine Navigator met Airco en 7jr garantie!! - Duration: 1:01. 
For more infomation >> Tanya Tucker - I Don´t Believe That´s How You Feel - Duration: 2:43. 
For more infomation >> Western Europe: The Ultimate Travel Guide by TourRadar - Duration: 17:09. 
For more infomation >> 3 Tips for Posing Your Bride and Groom: Breathe Your Passion with Vanessa Joy - Duration: 4:43. 
For more infomation >> Clash Royale: Introducing Bats [New Card] - Duration: 0:54. 
For more infomation >> Explore Ximending With Me｜Life in Taiwan Daily Vlog #49 - Duration: 8:58. 
For more infomation >> Balkan Moms Be Like... [TRANSLATED SUBTITLES CC] - Duration: 1:27. 
For more infomation >> EXPLORATION DES TOITS DE MARRAKECH - Duration: 9:55. 
For more infomation >> Ernest Borgnine BIO SKETCH American Actor 1917 - Duration: 1:21. 
For more infomation >> Pepsi Advert - Fit T.rex (Legendado em Português) - Duration: 0:16. 
No comments:
Post a Comment