Pusimos a prueba el aerogel contra un "No lanzallamas". Para eso expusimos frente a una enorme llama de 2000 °C, una gran manta de fibra de vidrio infundida con aerogel. SUSCRÍBETE ahora para ver todos nuestros videos: http://bit.ly/Suscribirse_Veritasium_en_español

Agradecimientos especiales a:
Aerogel Technologies: https://ve42.co/aerogeltech
Aspen Aerogels: https://ve42.co/aspen
Ben: @ BenScho999999
Dr. Stephen Steiner y el equipo de Aerogel Technologies.

El aerogel de sílice, supo ser anteriormente el sólido más liviano. Ese título ahora lo posee el aerogel de grafeno.
El material de archivo de materiales de aerogel en ambientes fríos fue proporcionado por cortesía de Aspen Aerogels. Se demostró que su producto, el crioaerogel, era flexible en nitrógeno líquido al mismo tiempo que evitaba las quemaduras frías en la mano. Son el fabricante de la manta utilizada en la parte principal de este video.

Este es el final de la serie de tres partes sobre aerogel. Pondré enlaces a las otras partes a continuación:
El Sólido Más Liviano del Mundo - AEROGEL: https://youtu.be/ArF5H_Ci3Uw
Me volví Impermeable utilizando AEROGEL: https://youtu.be/xpkvtAZV9CM

Este es un video educativo que muestra experimentos científicos realizados por profesionales. No debe ser intentado por los espectadores.

Música de Epidemic Sound: http://epidemicsound.com "Running Against the Clock" "Dangerous Forest"
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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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Acompáñennos en este fascinante viaje a través del mundo de la ciencia. Les presentaremos experimentos asombrosos para que se diviertan mientras adquieren nuevos conocimientos ¡Que lo disfruten!

¿Cuáles son los errores más comunes de las resoluciones de Año Nuevo y cómo podemos evitar esos errores para lograr nuestros objetivos?
SUSCRÍBETE ahora para ver todos nuestros videos:
http://bit.ly/Suscribirse_Veritasium_en_español

¡Gracias a Simone Giertz por enviarme un "Every Day Calendar"!
Recibe notificaciones cuando estén disponibles para ordenar aquí:
http://www.simonegiertz.com/every-day-calendar
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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

Hola amantes de la ciencia, aquí les presentamos los mejores momentos de Veritasium en Español del 2019. SUSCRÍBETE para ver todos nuestros videos: http://bit.ly/Suscribirse_Veritasium_en_español

Puesto 10
0:06 Lanzallamas vs Aerogel https://youtu.be/uPWjFWruFkQ

Puesto 9
1:06 3 Efectos Desconcertantes de la Física https://youtu.be/duPJ3Ha0OFs

Puesto 8
2:01 Me volví Impermeable utilizando AEROGEL https://youtu.be/xpkvtAZV9CM

Puesto 7
3:05 ¿Podemos Nadar en Bolas de Sombra? https://youtu.be/6FjUXWL2424

Puesto 6
4:01 Tablero de Fuego - ¡Llamas Danzantes! https://youtu.be/Jq8T4IW1q4g

Puesto 5
4:49 Cómo Retrasar el Envejecimiento o incluso Revertirlo https://youtu.be/j7bYLCzmCwk

Puesto 4
5:34 Un Recubrimiento que vuelve todo Indestructible https://youtu.be/yVjGX5lkZP0

Puesto 3
6:44 Exploración en MARTE InSight - Próxima Misión MARS 2020

Puesto 2
8:02 Micro Robots Magnéticos https://youtu.be/7u7zkAeQhjE

Puesto 1
9:11 ¡Fuego en Gravedad Cero! https://youtu.be/grlAf67JjIo

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Voz de doblaje: Pato Lago, Diego Rivas,
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How does a transistor work? Our lives depend on this device.
Support Veritasium on Patreon: http://bit.ly/VePatreon
Subscribe to Veritasium - it's FREE! http://bit.ly/YSWpWm

When I mentioned to people that I was doing a video on transistors, they would say "as in a transistor radio?" Yes! That's exactly what I mean, but it goes so much deeper than that. After the transistor was invented in 1947 one of the first available consumer technologies it was applied to was radios, so they could be made portable and higher quality. Hence the line in 'Brown-eyed Girl' - "going down to the old mine with a transistor radio."

But more important to our lives today, the transistor made possible the microcomputer revolution, and hence the Internet, and also TVs, mobile phones, fancy washing machines, dishwashers, calculators, satellites, projectors etc. etc. A transistor is based on semiconductor material, usually silicon, which is 'doped' with impurities to carefully change its electrical properties. These n and p-type semiconductors are then put together in different configurations to achieve a desired electrical result. And in the case of the transistor, this is to make a tiny electrical switch. These switches are then connected together to perform computations, store information, and basically make everything electrical work intelligently.

Special thanks to PhD Comics for awesome animations: http://bit.ly/16ZXcVY

And thanks to Henry Reich and Vanessa Hill for reviews of earlier drafts of this video.

Music: Kevin MacLeod (incompetech.com) Decisions

Einstein's classic thought experiment involves sitting on a train travelling at the speed of light. If you hold a mirror in front of your face, will you see your reflection in a mirror? How could light from your face reach the mirror if the mirror is travelling away from you? But it would be a pretty spooky train if you couldn't see your reflection so Einstein felt this solution wasn't realistic. On the other hand if you could see your reflection, it would mean light was travelling at the speed of light inside the train. But that meant the same light observed from outside the train would be going twice the speed of light. This again seems inconsistent. So Einstein resolved that you must see your reflection but that light must travel at the same speed inside and outside the train. The only way this is possible is if space and time are perceived differently by observers inside and outside the train.

Made for ABC TV Catalyst http://www.abc.net.au/catalyst/ as an extended version of my Comparing Temperatures video: http://www.youtube.com/watch?v=hNGJ0WHXMyE

Back in 2012, we all met for the first time at BrainSTEM - a conference of science YouTubers, instigated by Henry of MinutePhysics (Thank You Henry!!!) bringing together the most awesome STEM personalities from around the world. People like Vsauce, John Green, Vihart, Destin from Smarter Every Day, CGP Grey, Brady Haran of Numberphile et al. I had an awesome three days hanging out with all the cool people in this video and hopefully this is only the start of many fruitful collaborations to come. Thanks everyone!!!

Now this happens to be video 100 for me. It's not really about science, but I think it's pretty awesome because it features all of my YouTube heroes.

The Higgs Boson is awesome but it's NOT responsible for most of your mass! Thanks to audible.com for supporting this episode: http://bit.ly/ZJ5Q6z
The Higgs mechanism is meant to account for the mass of everything, right? Well no, only the fundamental particles, which means that electrons derive their mass entirely from the Higgs interaction but protons and neutrons, made of quarks, do not. In fact the quark masses are so small that they only make up about 1% of the mass of the proton (and a similar fraction of the neutron). The rest of the mass comes from the energy in the gluon field. Gluons are massless, but there is so much energy in the field that by E=mc^2 there is a significant amount of mass there. This is where most of your mass comes from and the mass of virtually everything around you.

Thanks to Professor Derek Leinweber for his great images, animations and explanations. Check out his site to find out more: http://bit.ly/ZZTKFP

NOTE: This video will appear in a playlist on Smarter Every Day hence the references to Veritasium. Destin does lots of cool science stuff - check out his channel if you haven't already http://www.youtube.com/destinws2

We have been collaborating on rotational motion, which is timely for some of the videos I've been doing lately. In this video I talk about gyroscopic precession - the "wobbling" of a spinning top around its axis.

This is caused by the torque due to the object's weight. The big idea is that the torque vector increases angular momentum in the direction of torque. So if there is no angular momentum initially, it will cause the system to swing in such a direction that it is rotating with new angular momentum in the direction of the torque. However, if there was angular momentum to begin with, the torque will change the direction of that angular momentum by causing precession.

Is the future of the universe already determined?
Vsauce tackles "What is Random?": https://youtu.be/9rIy0xY99a0

Special Thanks to: Prof Stephen Bartlett, Prof Phil Moriarty, Prof Andrea Morello, Prof Tim Bedding, Prof Michio Kaku, A/Prof Alex Argyros, Henry Reich, Vanessa Hill, Dianna Cowern, George Ruiz and Mystery Cat. Views expressed in this video are not necessarily those of the amazing experts listed above but their advice was invaluable in making this video.

Quantum simulation by PhET:
https://phet.colorado.edu/en/s....imulation/quantum-tu

Music by
Jake Chudnow: https://soundcloud.com/jakechudnow
Amarante Music: https://soundcloud.com/amarantemusic

DNA animations by http://www.wehi.tv

Space animations by NASA

Topic inspired by The Information - a history, a theory, a flood by James Gleick

Filmed on location at the University of Sydney, Washington DC and LA

The physics behind Kelvin's Thunderstorm explained. No, it is not a practical way of generating electricity, which is why we use turbines at hydro stations.

This video goes into more detail about the phenomenon demonstrated in this Hunger Games collab video: http://youtu.be/Rwa26CXG1fc

An atom is mostly empty space, but empty space is mostly not empty. The reason it looks empty is because electrons and photons don't interact with the stuff that is there, quark and gluon field fluctuations.
It actually takes energy to clear out space and make a true 'empty' vacuum. This seems incredibly counter-intuitive but we can make an analogy to a permanent magnet. When at low energies, like at room temperature, there is a magnetic field around the magnet due to the alignment of all the magnetic moments of the atoms. But if you add some energy to it by heating it, the particles gain thermal energy, which above the Curie temperature makes their magnetic moments randomly oriented and hence destroying the magnetic field. So in this case energy is needed to clear out the field, just as in the quantum vacuum.

Special thanks to Professor Derek Leinweber, find out more about his research here: http://bit.ly/ZZTKFP

Complete unedited interviews: http://www.youtube.com/watch?v=8dcw98B2Nzg
Trees can weigh hundreds or even thousands of tons, but where do they get this mass from? A few common answers are: the soil, water, and sunlight. But the truth is the vast majority of a dry tree's mass comes from the air - it originated as carbon dioxide

Epigenetics means women have different active x-chromosomes in different cells. Animation courtesy of http://wehi.tv
Music by Amarante: http://bit.ly/VeAmarante
Animation: Etsuko Uno
Art and Technical Direction: Drew Berry
Sound Design: Francois Tetaz & Emma Bortignon
Scientific Consultation: Marnie Blewitt
Courtesy of Walter and Eliza Hall Institute of Medical Research: http://wehi.tv

When a female embryo is four days old it consists of just 100 cells. At this point the x-chromosome from Mom and the one from Dad are both active. But in order for proper development to occur, one of the x chromosomes must be switched off.

Through a tiny molecular battle within each cell, one of the x-chromosomes wins and remains active while the loser is deactivated.

This is done by wrapping the DNA tighter around proteins, modifying histone tails, and DNA methylation - molecular markers to indicate this DNA should not be read.

What's surprising is that it's pretty random which x chromosome wins - sometimes it's Mom's and sometimes it's Dad's. So when a female is just 100 cells big, her cells have a mix of active x-chromosomes, some from Mom and some from Dad.

A pulsing black hole in the centre of a distant galaxy sheds light on black hole and galaxy formation. How fast are black holes rotating and how does that rotation change over its life-span?

Huge thanks to Prof. Geraint Lewis and study author Dr. Dheeraj Pasham.

A loud quasi-periodic oscillation after a star is disrupted
by a massive black hole
https://ve42.co/pasham

Special thanks to Patreon supporters:
Donal Botkin, James M Nicholson, Michael Krugman, Nathan Hansen, Ron Neal, Stan Presolski, Terrance Shepherd

Music from http://epidemicsound.com "Colorful animation 4" "serene story 2" "To the stars 01" "Black Vortex

Animations by Alan Chamberlain and courtesy of NASA

Why is there a bright spot behind spherical objects?
Be the first to find out about new projects: http://www.veritasium.com


Filmed by Nathan Watkins and Raquel Nuno, animation by Meg Rosenburg. Music by Kevin MacLeod, http://www.incompetech.com 'Scissors' 'Mirage' ' Marty Gots a Plan'. Special thanks to Laura Vican for helping with the experiment.

References:
http://www.princeton.edu/~rvdb..../images/Questar/Pois
Why Toast Lands Jelly-side Down: Zen and the Art of Physics Demonstrations By Robert Ehrlich

Who on Earth is exposed to the most ionizing radiation?
Check out Audible: http://bit.ly/AudibleVe
I'm filming a documentary for TV about how Uranium and radioactivity have shaped the modern world. It will be broadcast in mid-2015, details to come. The filming took me to the most radioactive places on Earth (and some places, which surprisingly aren't as radioactive as you'd think). Chernobyl and Fukushima were incredible to see as they present post-apocalyptic landscapes. I also visited nuclear power plants, research reactors, Marie Curie's institute, Einstein's apartment, nuclear medicine areas of hospitals, uranium mines, nuclear bomb sites, and interviewed numerous experts.

Notes about measuring radiation:
Sieverts are a measure of 'effective dose' - that means they measure the biological impact of the energy transferred to tissues from radiation.

Obviously I owe a debt to the fantastic chart made by xkcd, which inspired my visual approach to this video.
https://xkcd.com/radiation/

DOSES MAY VARY
The level of radiation varies widely around the world depending mainly on altitude and geology (excluding nuclear accidents).

Estimates of particular doses also vary. All numbers reported in this video should be taken as order of magnitude only.

The most contentious claim may be that smokers receive the highest dose of ionizing radiation. This is not a whole body dose, but a dose to the lungs as specified in the video. References are here:
http://en.wikipedia.org/wiki/H....ealth_effects_of_tob
http://www.rmeswi.com/36.html

Special thanks to:
Physics Girl: https://www.youtube.com/physicswoman
MinutePhysics: https://www.youtube.com/minutephysics
Natalie Tran: https://www.youtube.com/communitychannel
Bionerd23: https://www.youtube.com/bionerd23
Nigel and Helen for feedback on earlier drafts of this video.

Music is "Stale Mate"

The Salton Sea is the largest body of water in California, home to the second most diverse group of birds in America and it exists by accident.
Another great video on the Salton Sea: https://youtu.be/otIU6Py4K_A
I used archive from this video.

Music by Kevin MacLeod, www.incompetech.com ‘Mirage’, ‘Hyperfun’, ‘Marty Gots a Plan’, ‘Past the Edge’

Check out the original double slit experiment: http://www.youtube.com/watch?v=Iuv6hY6zsd0 - oh, and for the sun to be seen as single photons, you would have to be ~1000 light years away, so well past Pluto. For clarification on this video, please see: http://www.youtube.com/watch?v=OW7tfrTh66c
What would you see if you were drifting through space, looking back at the sun? Well its light intensity would decrease as the inverse square of distance from the sun. And you would imagine the intensity would decrease smoothly, asymptotically approaching zero.

But this is not what happens.

If you had sensitive enough eyes, like frogs' eyes, you would find that at some point the sun would start to flicker. You would see flashes of light separated by complete darkness. And as you drift further from the sun, what's strange is that these flashes do not decrease in brightness, but they do become less frequent. That's because light comes in lumps, called quanta or photons, which are indivisible. So if you try to spread light out very thinly, you reach a point where there are only single bits of light reaching an observer's eye at any given time.

I should acknowledge the book "The Fabric of Reality" by David Deutsch, which contains a similar story about a frog and a torch. It inspired me to make this film. Thanks also to MinutePhysics for reviewing earlier drafts and suggesting I make it more ridiculous.