Nerea, Lucía y Laura interpretan "Radioactive" de Imagine Dragons en las segundas batallas de la cuarta edición de La Voz Kids.

Si estás en España:
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Cuando se comprime el aire rápidamente, puede alcanzar temperaturas altas. En esta demostración, enseñamos como el algodón puede llegar al punto de auto-ignición por una compresión rápida de aire en la jeringa de fuego.

Veritasio es el canal de doblaje de Veritasium al español. ¡Suscríbete!

Dirección y edición- Enrique Morán
Traducción- Diego Magaña

Doblaje por:
Diego Magaña - Derek Muller
Enrique Morán- Nigel

Veritasium fue fundado por Derek Muller- https://www.youtube.com/channe....l/UCHnyfMqiRRG1u-2Ms

If you repeat something enough times, it comes to feel good and true.
Support Veritasium on Patreon: http://bit.ly/VePatreon
Science with Hot Wheels! My vids for kids: http://bit.ly/VeHotWheels
More info on cognitive ease: http://bit.ly/29OMGas

This episode was inspired by the book Thinking Fast and Slow by Daniel Kahneman.

This video was edited by Daniel Joseph Files, with music from Kevin MacLeod at http://incompetech.com "Marty Gots a Plan" "Sing Along With Jim" and "Full On".

Veritasium is supported on Patreon by:
Jason Buster, Saeed Alghamdi, Tony Fadell, Donal Botkin, Bryan Baker, & Imthetroublesolver 8)

Carla interpreta "Mañana" de María parrado, en las cuartas audiciones a ciegas de la tercera edición de La Voz Kids.

Si estás en España:
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El eclipse total de sol que tuve la oportunidad de presenciar en Madras, Oregón, ocurrió el 21 de agosto del 2017 y la experiencia fue maravillosa.
Cuando la luna pasó frente al sol, el día se transformó en noche y reveló la corona solar, deslumbrándonos a todos los presentes.

Hay quienes dicen que no debes fotografiar tu primer eclipse solar y quizás tengan razón. Estaba concentrado en obtener la exposición adecuada para poder ver las perlas de Baily y el anillo de diamantes, además de asegurarme de capturar la corona y las llamaradas solares. Esto fue un poco estresante pero estoy encantado con los resultados.

El último eclipse solar total fue el 2 de julio de 2019. Se pudo ver totalmente en ciertas regiones de Argentina y Chile. En el resto de Sudamérica se vio parcialmente.

Quiero agradecer especialmente al Dr. Teagan Wall por compartir esta experiencia conmigo y a Raquel Nuno por inspirarme a venir a Oregón.

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Servicios de doblaje: Unilingo
Traductora: Paula Salomone
Voz de doblaje: Pato Lago
Ingeniero de sonido: Gastón Adriel Álvarez
Edición y post-producción de video: Yoel Aaron Echegaray Salas, Juan Caille Tornquist
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#eclipsesolar

All the large-scale structure in the universe may owe its existence to nothing.
Sponsored by the Dyson 360 Eye Robot #ad: http://bit.ly/2cGqBRV
Support Veritasium on Patreon: http://bit.ly/VePatreon

Thanks to Patreon supporters:
Bryan Baker, Donal Botkin, Tony Fadell, Saeed Alghamdi

Let's see how clearly I can explain this. We think of empty space as, well... empty, the epitome of nothingness. But as our understanding of physics has evolved we have realized that it's not truly empty. Space is filled with fields. There is a field for every subatomic particle. One for electrons, up quarks, down quarks, neutrinos and so on. In empty space these fields are basically zero, flat, nil. But it's impossible to make them perfectly zero so there are always some quantum fluctuations in the fields, even in a perfect vacuum. These are sometimes called virtual particles but they should really just be thought of as little disturbances in the field. Vacuum fluctuation play a role mediating the interactions of subatomic particles but they don't really have an impact on the large-scale structure of the universe, EXCEPT during inflation, right after the big bang when the universe increased in size 10^26 times. Due to this rapid expansion, those tiny fluctuations were blown up to the scale of the observable universe. And we know this by looking at the cosmic microwave background radiation where we can see slightly hotter and cooler parts of the early universe that correspond to density fluctuations. And it is these density fluctuations that allowed matter to clump together into large structures like the gigantic gas clouds that would go on to contain stars and planets. In case the video isn't clear, this is what I've been trying to say.

Animations by Gustavo Rosa

This video was sponsored in part by Dyson #ad

These are the molecular machines inside your body that make cell division possible. Animation by Drew Berry at the Walter and Eliza Hall Institute of Medical Research. http://wehi.tv

Special thanks to Patreon supporters:
Joshua Abenir, Tony Fadell, Donal Botkin, Jeff Straathof, Zach Mueller, Ron Neal, Nathan Hansen

Support Veritasium on Patreon: http://ve42.co/patreon

Every day in an adult human roughly 50-70 billion of your cells die. They may be damaged, stressed, or just plain old - this is normal, in fact it’s called programmed cell death.

To make up for that loss, right now, inside your body, billions of cells are dividing, creating new cells.

And cell division, also called mitosis, requires an army of tiny molecular machines.DNA is a good place to start - the double helix molecule that we always talk about.

This is a scientifically accurate depiction of DNA. If you unwind the two strands you can see that each has a sugar phosphate backbone connected to the sequence of nucleic acid base pairs, known by the letters A,T,G, and C.

Now the strands run in opposite directions, which is important when you go to copy DNA. Copying DNA is one of the first steps in cell division. Here the two strands of DNA are being unwound and separated by the tiny blue molecular machine called helicase.
It literally spins as fast as a jet engine! The strand of DNA on the right has its complimentary strand assembled continuously but the other strand is more complicated because it runs in the opposite direction.
So it must be looped out with its compliment strand assembled in reverse, section by section. At the end of this process you have two identical DNA molecules, each one a few centimeters long but just a couple nanometers wide.

To prevent the DNA from becoming a tangled mess, it is wrapped around proteins called a histones, forming a nucleosome.
These nucleosomes are bundled together into a fiber known as chromatin, which is further looped and coiled to form a chromosome, one of the largest molecular structures in your body.
You can actually see chromosomes under a microscope in dividing cells - only then do they take on their characteristic shape.

The process of dividing the cell takes around an hour in mammals. This footage is from a time lapse. You can see how the chromosomes line up on the equator of the cell. When everything is right they are pulled apart into the two new daughter cells, each one containing an identical copy of DNA.
As simple as it looks, this process is incredibly complicated and requires even more fascinating molecular machines to accomplish it. Let’s look at a single chromosome. One chromosome consists of two sausage-shaped chromatids - containing the identical copies of DNA made earlier. Each chromatid is attached to microtubule fibers, which guide and help align them in the correct position. The microtubules are connected to the chromatid at the kinetochore, here colored red.
The kinetochore consists of hundreds of proteins working together to achieve multiple objectives - it’s one of the most sophisticated molecular mechanisms inside your body. The kinetochore is central to the successful separation of the chromatids. It creates a dynamic connection between the chromosome and the microtubules. For a reason no one’s yet been able to figure out, the microtubules are constantly being built at one end and deconstructed at the other.
While the chromosome is still getting ready, the kinetochore sends out a chemical stop signal to the rest of the cell, shown here by the red molecules, basically saying this chromosome is not yet ready to divide
The kinetochore also mechanically senses tension. When the tension is just right and the position and attachment are correct all the proteins get ready, shown here by turning green.
At this point the stop signal broadcasting system is not switched off. Instead it is literally carried away from the kinetochore down the microtubules by a dynein motor. This is really what it looks like. It has long ‘legs’ so it can avoid obstacles and step over the kinesins, molecular motors walking the other direction.

Studio filming by Raquel Nuno

As the sea ice melts ever earlier in the season, swimming to escape predators becomes even harder. Can this penguin survive its deadly dash to freedom?

Subscribe: http://bit.ly/BBCEarthSub

Watch more:
Planet Earth http://bit.ly/PlanetEarthPlaylist
Blue Planet http://bit.ly/BluePlanetPlaylist
Planet Earth II http://bit.ly/PlanetEarthIIPlaylist
Planet Dinosaur http://bit.ly/PlanetDinoPlaylist

Episode 1 | Antarctica | Seven Worlds, One Planet

Millions of years ago incredible forces ripped apart the Earth’s crust creating seven extraordinary continents. Seven Worlds, One Planet, narrated by Sir David Attenborough, will reveal how each distinct continent has shaped the unique animal life found there.

Welcome to BBC EARTH! The world is an amazing place full of stories, beauty and natural wonder. Here you'll find 50 years worth of entertaining and thought-provoking natural history content. Dramatic, rare, and exclusive, nature doesn't get more exciting than this.

Want to share your views with the team? Join our BBC Studios Voice: https://www.bbcstudiosvoice.com/register

This is a page from BBC Studios who help fund new BBC programmes. Service information and feedback: http://bbcworldwide.com/vod-fe....edback--contact-deta

For a report on ABC's Catalyst program (http://www.abc.net.au/catalyst/), I visited the Large Hadron Collider in Switzerland to find out what is being done now that the Higgs Boson has been discovered.

Although its mass has been measured around 125-126 GeV most of the other properties of the particle remain unknown. Its spin appears to be 0 or 2 but more results are required to nail this down. If it is the standard model Higgs, the spin should be 0, resulting in a fairly symmetric distribution of decay products in the detectors.

We may know this year if it's not the standard model Higgs - this would be the case if it doesn't decay into specific particles with the expected frequency. However if it is the standard model Higgs, it may take many more years to be certain. The large hadron collider will be shut down in 2013 for upgrades so that higher energies up to 14 TeV can be tested. Right now the LHC is operating at 8 TeV. The next announcement is expected in December.

Do negative air ions improve mood, anxiety, depression, alertness?
Part of this video was sponsored by LastPass, click here to find out more: http://bit.ly/2RZZTZk

Special thanks to Prof. Jack Beauchamp and Dr. Nathan Dalleska from Caltech for all their help running these experiments and discussing the research. For more, check out the links below:
http://www.cce.caltech.edu/peo....ple/jesse-l-jack-bea
http://beckmaninstitute.caltech.edu/eac.shtml

If you want to dig into the research on negative ions yourself, I suggest starting with the review studies:

Air ions and mood outcomes: a review and meta-analysis.
Perez V, Alexander DD, Bailey WH.
BMC Psychiatry. 2013 Jan 15;13:29.
https://www.ncbi.nlm.nih.gov/pubmed/23320516

Air ions and respiratory function outcomes: a comprehensive review
Dominik D Alexander, William H Bailey, Vanessa Perez, Meghan E Mitchell, and Steave Su
J Negat Results Biomed. 2013; 12: 14.
https://www.ncbi.nlm.nih.gov/p....mc/articles/PMC38485

Exposure of laboratory animals to small air ions: a systematic review of biological and behavioral studies.
Bailey WH, Williams AL, Leonhard MJ.
Biomed Eng Online. 2018 Jun 5; 17(1):72.
https://www.ncbi.nlm.nih.gov/pubmed/29866122

Thumbnail photography by Raquel Nuno

VFX by Alan Chamberlain

Sound recording by Whitney Clavin

Motion Graphics by Charlie Kilman

Music from Epidemic Sound: http://epidemicsound.com "Capture a Picture 1" and "Seaweed"

On the treacherous slopes of the Himalayas, no hunter other than the Snow Leopard would have a chance of catching such agile prey as the Markhor. Subscribe: http://bit.ly/BBCEarthSub

Taken From Planet Earth Series 1, Episode 2.

WATCH MORE:
New on Earth: https://bit.ly/2M3La96
Oceanscapes: https://bit.ly/2Hmd2kZ
Wild Thailand: https://bit.ly/2kR7lmh

Welcome to BBC EARTH! The world is an amazing place full of stories, beauty and natural wonder. Here you'll find 50 years worth of astounding, entertaining, thought-provoking and educational natural history content. Dramatic, rare, and exclusive, nature doesn't get more exciting than this.

Want to share your views? Join our BBC Studios Voice: https://www.bbcstudiosvoice.com/register

This is a channel from BBC Studios who help fund new BBC programmes. Service information and feedback: http://bbcworldwide.com/vod-fe....edback--contact-deta

Este material increíble lo podemos encontrar en la fabricación de diversas cosas, desde chalecos antibalas hasta las paredes del Pentágono, la fuerza de la poliurea proviene de sus moléculas de cadena larga. SUSCRÍBETE ahora para ver todos nuestros videos:
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Con mis amigos del canal de YouTube "How Ridiculous” lanzamos una sandía desde una torre de 45 metros.
Por supuesto que se hizo pedazos al estallar contra el suelo luego de una caída libre de 3 segundos, donde la sandía aceleró a más de 100 kilómetros por hora.

Después rociamos otra sandía con un recubrimiento de polímero y la volvimos a arrojar.
No podrán creer el resultado.

Echa un vistazo al canal How Ridiculous: http://bit.ly/VeHowRidiculous
Moléculas magnéticas de Snatoms: http://bit.ly/VeSnatoms
Un agradecimiento especial a South Bay Line-X: http://southbaylinex.com/
Filmado por Prashanth Venkataramanujam
SFX A Shell in the Pit

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Servicios de doblaje: Unilingo
Traductora: Paula Salomone
Voz de doblaje: Pato Lago, Diego Rivas,
Ingeniero de sonido: Gastón Adriel Álvarez
Edición y post-producción de video: Juan Caille Tornquist
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#veritasiumenespañol

Jeremai interpreta "Someone like you" de Adele tras ser elegido por Rosario en la gran final de la cuarta edición de La Voz Kids.

Si estás en España:
- Puedes ver este vídeo en http://www.telecinco.es/lavozkids/ y el programa completo en http://www.mitele.es/programas....-tv/la-voz-kids/0000

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Ramón interpreta "Todavía" de Tamara en la semifinal de la cuarta edición de La Voz Kids.

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Rosario y Jeremai interpretan "Pa' querer" de Rosario en la gran final de la cuarta edición de La Voz Kids.

Si estás en España:
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If you thought the Lyre Bird was a good mimic, you're in for a treat. This clip will bring your heart to your mouth as you wonder at how close orangutan behaviour is to our own. From the BBC documentary series, Life of Mammals.

The nutrient content of food is declining. Is it because of soil depletion, selective breeding, or... something else?
Watch my new documentary, VITAMANIA: http://ve42.co/vita

I came across this story as I was making the film Vitamania. When you ask sellers of vitamins why you should take vitamin supplements even if you eat a healthy diet, they will say because our food doesn't contain all the nutrients it once did. This is supposedly due to soil depletion, cold storage, food ripening off the vine, and global transport of out-of-season foods. And to an extent this is true. Foods contain the greatest amount of nutrients if they are eaten soon after they are harvested. An unexpected source of nutrient decline is the increasing amount of carbon dioxide in the atmosphere. It causes plants to grow faster and bulk up on carbs but at the expense of other nutrients, so in percentage terms the amount of nutrients are actually declining. For now this decline is modest so supplementing with vitamin pills is probably unnecessary for most people with a healthy diet but it may be a concern in future.

Thanks to Kate Pappas & Chris Kamen for writing, producing and filming this video with me
Edited by Lucy McCallum
Sound mix by Wayne Hyett
Fact Checking by Calvin Lee and Claire Smith
Thanks to the Collingwood Children’s Farm and Glenn Fitzgerald from the University of Melbourne & Agriculture Victoria

Further Reading:

https://www.sciencedirect.com/....science/article/pii/
https://www.ncbi.nlm.nih.gov/p....ubmed/15637215/?ncbi
http://soils.wisc.edu/facstaff..../barak/poster_galler
https://www.politico.com/agend....a/story/2017/09/13/f
http://www.abc.net.au/news/201....8-05-24/scientists-w

Celia, Alexandra y Dani interpretan "Run To You" de Whitney Houston en las segundas batallas de la tercera edición de La Voz Kids.

Si estás en España:
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Elena Acosta interpreta "You shook me all night long", tema de ACDC con versión de Celine Dion y Anastasia, en las quintas audiciones a ciegas de la cuarta edición de La Voz Kids.

Si estás en España:
- Puedes ver este vídeo en http://www.telecinco.es/lavozkids/ y el programa completo en http://www.mitele.es/programas....-tv/la-voz-kids/0000

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SEE THE SETUP FIRST: http://bit.ly/bulletblock
Click here for the explanation: http://bit.ly/1dHPk2K
Spinning Tube: http://bit.ly/Va43Z6
Spinning Disk: http://bit.ly/14MSKsT
Chain Drop: http://bit.ly/1713VQO
Spool: http://bit.ly/14wkxfn

Special Thanks to:
Henry (MinutePhysics): http://www.youtube.com/minutephysics
Destin (Smarter Every Day): http://www.youtube.com/smartereveryday
Greg and Mitch (ASAP Science): http://youtube.com/asapscience
Elise Andrew (I F***ing Love Science): http://youtube.com/iflscience

Thanks to everyone at RIT and Dickinson College who helped with the making of this video:
Rochester Institute of Technology
Robert Teese, Katelyn Wilkerson, Andrew Gillie, Andrew Stidwill

Dickinson College
This experiment was the brainchild of David Jackson based on a demo at Princeton.
Priscilla Laws, Catrina Hamilton-Drager, Maxine Willis

High-speed camera support:
Charles Zwemer and Bria Antoine

Music Licensed from CueSongs.com: The Temper Trap "Love Lost"
Lights Motion "Epilogue"