Top Vídeos

What Is Electricity? (Are You Gonna Be My Girl?)

Veritasium
10 vistas · 6 años hace

1, 2, 3 A song about 'lectricity
because it powers our lives
makes it possible for us to thrive

because it powers our lives
makes it possible for us to thrive

Oh, 4, 5, 6, volts of potential difference
makes electrons go round
if the circuit is complete and sound

Circuit's closed
Voltage There
Current Flows
Power Everywhere

We use AC,
in factories
and homes because we can transform it
High voltage
transmits with lower loss
but low voltage is best for safety
I said what is electricity?

Well, so 1,2,3 a song about 'lectricty
because it powers our lives
makes it possible for us to thrive

because it powers our lives
makes it possible for us to thrive

Oh, 4,5,6 volts of potential difference
makes electrons go round if the circuit is complete and sound

Heat makes steam
turns turbines
and a magnet in
coils of wires

We use AC,
in factories
and homes because we can transform it
High voltage
transmits with lower loss
but low voltage is best for safety
I said what is electricity?

Oh yeah, Oh yeah, C'mon!
How'd it be
no energy
of the electrical persuasion
I know we'd
have no computers
no internet or mobile phones yeah
Powers the world
Makes the world
We need electricity yeah

Can You Swim in Shade Balls?

Veritasium
10 vistas · 6 años hace

I bought 10,000 shade balls and tried to swim in them. They appear to act like a non-Newtonian fluid: rigid under high shear stress, but they flow like a liquid under low shear.
Get a signed shade ball by supporting Veritasium: https://ve42.co/patreon

Receiving a shade ball:
1. Support Veritasium on any Patreon tier and enter your address https://ve42.co/patreon
2. In about a month I will send out signed shade balls
3. I will cover all shipping costs but if things get really crazy I will prioritize existing Patreon supporters and higher tiers

My sense was that swimming in shade balls would be difficult but still doable. This was roughly true for the single layer of shade balls. The shade balls slide past each other so they act like a liquid, albeit a viscous one owing to their significant inertia. It's much more intense exercise and it's also annoying to be bombarded with shade balls on all sides of your body, particularly your head. With multi-layer shade balls (as exists on much of LA reservoir) things get significantly more difficult. The balls bunch together and when you try to move through them quickly, they become more rigid, providing significant resistance to motion. This has the benefit that you can lie on them and as long as they stay trapped under you, you can float on them. But a little bit of motion causes them to move around and you sink through quickly.

Huge thanks to:
Jordan Schnabel and Cristian Carretero for filming and swimming and providing lifeguard services.
Raquel Nuno for filming and putting up with me.

Special thanks to Patreon supporters:
Donal Botkin, Michael Krugman, Ron Neal, Stan Presolski, Terrance Shepherd, Penward Rhyme and everyone who provided feedback on an early draft of this video.

Music from https://epidemicsound.com "Dubstep Mammoth 2" "Finally Here (Instrumental)" "The Last Arrival" "Sundown Love (Instrumental)"

Option D - Acceleration of a Bungy Jump

Veritasium
10 vistas · 6 años hace

Congratulations, the acceleration of the bungy jump is greatest at the jumper's lowest point. This is because the bungy is now stretched to its maximum, meaning if applies a force up on the jumper more than twice his weight. This means he accelerates up at a greater rate than the acceleration down when he left the platform.

Slinky Drop

Veritasium
10 vistas · 6 años hace

What happens when a slinky that has been extended under its own weight is released? How does it fall to the ground? Answer link: http://www.youtube.com/watch?v=eCMmmEEyOO0

YouTube SpaceLab Intro by Veritasium

Veritasium
10 vistas · 6 años hace

http://www.youtube.com/spacelab gives you an opportunity to design an experiment to be performed in space! If you're between the ages of 14-18, make a 2 minute youtube video proposing an experiment to be performed in zero g. Your video will be assessed by a panel of experts with the winner having their experiment performed in space and broadcast live to the world.

NASA ISS Live Stream - Earth From Space | ISS LIVE FEED : ISS Tracker + Live Chat

admin
10 vistas · 6 años hace

Latest Upload - First SpaceX Space Tourists
https://www.youtube.com/watch?v=1xWbCcaJnIQ

Earth from space seen from the International Space Station
Thanks for joining to share these wonderful views of our home -
please like and share this video.
Watch our latest upload here: https://www.youtube.com/watch?v=qDboL6K9kAU

This ISS live stream of planet earth from space is courtesy of Nasa Earth Viewing Cameras aboard the international space station.
The station is crewed by #NASA astronauts as well as Russian Cosmonauts and a mixture of Japanese, Canadian and European astronauts as well.

The Expedition 62 Crew is: Christina Koch, Andrew Morgan, Oleg Skripochka

#nasalive #earth #earthfromspace
THIS WILL SHOW LIVE and PRE-RECORDED FOOTAGE -
As the Space Station passes into a period of night every 45 mins video is unavailable - during this time, and other breaks in transmission, recorded footage is shown .
When back in daylight the live stream of earth will recommence

If you are here to talk about a flat earth then please don't bother. You can stay and watch our beautiful globe earth as it spins in space , but please don't share your nonsense beliefs in our chat.

Got a question about this feed? Read our FAQ's
https://spacevideosfaq.tumblr.com/
We encourage people to join in our live chat but ask that you are respectful of others. Rude and inappropriate comments will not be tolerated. We ask that you chat in English so everyone can participate together and also to enable us to identify any inappropriate comments.

#livechat #space #spacetalk #isslive #livestream

Watch the earth roll by courtesy of the NASA Live cameras
International Space Station Live Feed: Thanks to NASA for this
http://www.nasa.gov The ISS passes into the dark side of the earth for roughly half of each of its 90 minute orbits. During this time no video is available. We would recommend that you check out some recorded footage while you wait - click the link above.

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Music by Keving Macleod
http://incompetech.com/music/royalty-free/

Lewis Hamilton Visits NASA - www.APEX.one

admin
10 vistas · 6 años hace

Formula One World Champion visited NASA's Johnson Space Center in Houston on his day off to live a boyhood dream ahead of the United States Grand Prix. Narrated by Will Buxton. Edited by http://www.apex.one