A story is worth a thousand data points.
My second channel: http://bit.ly/2veritasium
More info on this topic: http://wke.lt/w/s/TzNC0

Want to help plant 20M trees by 2020? Go to https://teamtrees.org #teamtrees
Huge thanks to all the YouTubers who organized this. My apologies for the repost.
These videos are from 2012 so my interest in trees goes back a long ways. I think these videos discuss two of the most interesting and amazing facts about our leafy friends: they are made mostly of CO2 (which comes from us breathing out amongst other sources) and they can transport water up a tube higher than any we can currently manufacture. So trees are out to get you. But we do much worse to them so we owe it to them to plant some more. 20 mil is a good start.

On the surface of Earth all objects accelerate downwards at the same rate - at least, they're supposed to. But we all know dust, pieces of paper, and feathers fall slower. This is of course due to the influence of air resistance. In this experiment we use an evacuated cylinder to test whether a coin and feather really do accelerate at the same rate.

One of the most common physics misconceptions is that an unbalanced force causes constant motion. In truth, an unbalanced force leads to changes in motion - accelerations.

There are a few persistent misconceptions about what causes the seasons. Most believe it is the distance between the Earth and sun which varies to give us seasonal temperature variations. However it is actually the directness of the sun's rays leading to more intense sunshine in summer and less in winter.

How Schlieren imaging works in color, black and white and slow-mo.
Get a free audiobook with a 30 day free trial at http://www.audible.com/veritasium

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

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

Filming by Raquel Nuno
Sound Effects by A Shell in the Pit

Is it possible to reconstruct sound from high-speed video images?
Part of this video was sponsored by LastPass: http://bit.ly/2SmRQkk
Special thanks to Dr. Abe Davis for revisiting his research with me: http://abedavis.com

This video was based on research by Dr. Abe Davis and colleagues. I found out about this work years ago and was fascinated by the way he was able to capture vibration information in image-only video. I always imagined the motions of objects would be visible as when recording a tuning fork in slow motion - so deriving sound from high speed images seemed a feasible task. But the reality is much more difficult.

Sound vibrations only cause objects to wiggle by about a micrometer. This is much smaller than a pixel, so the algorithm must understand the characteristics of the image. A move in one direction should cause some pixels to lighten slightly, while others darken - and this behavior is correlated along the edges of the image. So noise can be reduced because it's random over the image and there are enough places to sample that you can get it to cancel out.

Something I'm wondering now is - would it be possible to capture sound in a single image? I'm thinking it would have to be an image of a large object or space because the wavelengths of typical sounds are quite long. Maybe a high frequency sound could be imaged in a suitable medium...

Animations by Alan Chamberlain

Music from http://epidemicsound.com "Seaweed"

Have your voice heard at the UN Climate Summit in NYC, September 23: http://bit.ly/WhyNotVe



Interview filming by Chris Cassella: http://bit.ly/ScienceAlertVe

Vitamins are 13 molecules essential for life that our bodies can't make themselves.
Watch Vitamania here: https://ve42.co/vita

Now available worldwide, except France and Germany where it will be broadcast on ARTE soon. Subscribe on the Vitamania website for updates.

Use #vitamania to join the conversation on Twitter and Facebook.

Vitamania is a Genepool Productions feature documentary for SBS Australia, CuriosityStream, and ARTE France. Principal production investment from Screen Australia, in association with Film Victoria.

Thank you to Rodney Fox for sharing his story. He was attacked by a shark 50 years ago - Dec. 8 1963. If you're interested in his book or in going shark cage diving in South Australia, check out: http://bit.ly/rodneyfox

What happens when a super long slinky is dropped?

Daniel Calveti - ¡Que No Se Hunde Na'a! - Canción Tributo a Venezuela
Daniel Calveti - ¡Que No Se Hunde Na'a! - Canción Tributo a Venezuela
Daniel Calveti - ¡Que No Se Hunde Na'a! - Canción Tributo a Venezuela

Jesús tu estás aquí
Más cerca de mi aliento y susurro
Jesús te puedo sentir
Me acerco confiado a tu trono de gracia

En tu presencia hay sanidad
En tu presencia hay salvación
Tu presencia me rodea de tu amor
Mi Señor

Jesús tu estás aquí
Mas cerca de mi aliento y susurro

En tu presencia hay libertad
En tu presencia encuentro paz
Tu presencia me rodea
De tu amor mi señor

En tu presencia hay libertad
En tu presencia encuentro paz
Tu presencia me rodea de tu amor
Mi Señor

Si tu estás
Todo cambia a mi alrededor
Tu poder
Llena toda mi necesidad
Mi alma está
Anclada al tono de tu voluntad
De tu voluntad

Si tu estás
Todo cambia a mi alrededor
Tu poder
Llena toda mi necesidad
Mi alma está
Anclada al tono de tu voluntad
De tu voluntad

Aquí amamos tu presencia
Aquí amamos tu presencia
Aquí amamos tu presencia oh Señor

Aquí amamos tu presencia
Aquí amamos tu presencia
Aquí amamos tu presencia oh Señor

Aquí amamos tu presencia
Aquí amamos tu presencia
Aquí amamos tu presencia oh señor

Si tu estás
Todo cambia a mi alrededor
Tu poder
Llena toda mi necesidad
Mi alma está
Anclada al tono de tu voluntad
De tu voluntad

Letra de Dios, de Daniel Calveti

Dios de Habraam
Dios de Isaac
Dios de Jacob


Ayúdanos, ayúdanos
Ayúdanos, ayúdanos

Queremos contar de tus maravillas
Abre el mar en dos y déjanos pasar
Queremos tomar leche y miel
De el río que fluye de tu espíritu

Dios de Habraam
Dios de Isaac
Dios de Jacob

Ayúdanos, ayúdanos
Ayúdanos, ayúdanos

Queremos contar de tus maravillas
Abre el mar en dos y déjanos pasar
Queremos tomar leche y miel
De el río que fluye de tu espíritu

Dios Dios Dios Dios

Queremos contar de tus maravillas
Abre el mar en dos y déjanos pasar
Queremos tomar leche y miel
De el río que fluye de tu espíritu Haz click para suscribirte: http://bit.ly/DanielCalvetiOficial

13. Manejando el Tiempo - Daniel y Shari Calveti - Devocional Cristiano Para Parejas

Prédicas Cristianas | 1 Samuel 17. Daniel Calveti. Mensaje en la iglesia Lakewood. Declara que toda intimidación del enemigo que estuvo en el pasado se acaba en el nombre de Jesús.

Escucha este mensaje de Daniel Calveti sobre los Avengers

Haz click para suscribirte: http://bit.ly/DanielCalvetiOficial

La letra de Abre Los Cielos de Daniel Calveti

Abre los cielos, derrama tu gloria
Abre los cielos, derrama tu gloria
Abre los cielos, derrama tu gloria, aquí

Abre los cielos, derrama tu gloria
Abre los cielos, derrama tu gloria
Abre los cielos, derrama tu gloria, aquí

Que su paz te cubra,
que su amor te abrace,
Que todo lo que pidas
de su casa hoy venga a ti

Que su paz te cubra,
que su amor te abrace,
Que todo lo que pidas
de su casa hoy venga a ti

Abre los cielos, derrama tu gloria
Abre los cielos, derrama tu gloria
Abre los cielos, derrama tu gloria, aquí

Haz click para suscribirte: http://bit.ly/DanielCalvetiOficial

Letra de Salmo 150, de Daniel Calveti

////La la la la la la la////

Gozo hay en la casa,

de los que aman a Dios,
de los que exaltan su Nombre

Gozo hay en la casa,
de los que aman a Dios,
de los que exaltan su Nombre

Alábenlo en su Santuario,
Alábelo el firmamento,
Poderoso Dios.

Alábenlo por sus Proezas,
si Inmensa Grandeza,
Todo lo que respire, Alabe

////La la la la la la la////

Gozo hay en la casa,
de los que aman a Dios,
de los que exaltan su Nombre

Gozo hay en la casa,
de los que aman a Dios,
de los que exaltan su Nombre

Alábenlo en su Santuario,
Alábelo el firmamento,
Poderoso Dios.

Alábenlo por sus Proezas,
si Inmensa Grandeza,
Todo lo que respire, Alabe

////La la la la la la la////
////La la la la la la la////

http://danielcalveti.com/

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https://itun.es/us/FRrj7


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