Veritasium

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What Can We Do About Asteroids?

Stephen Hawking thought an asteroid impact posed the greatest threat to life on Earth. Thanks to Kiwico for sponsoring this video. For 50% off your first month of any crate, go to https://kiwico.com/veritasium50 For other potential world ending catastrophes, check out Domain of Science: https://ve42.co/DoS Special thanks to: Prof. Dave Jewitt from...

Why no one has measured the speed of light

Physics students learn the speed of light, c, is the same for all inertial observers but no one has ever actually measured it in one direction. Thanks to Kiwico for sponsoring this video. For 50% off your first month of any crate, go to https://kiwico.com/veritasium50 Huge thanks to Destin from Smarter Every Day for always being open and willing...

Do You Expand With The Universe?

As the universe expands, #expanding #space is said to "stretch" photons. But if it stretches photons, does it also stretch molecules, galaxies and you? A portion of this video was sponsored by Salesforce. Go to https://salesforce.com/veritasium to learn more. Special thanks to Geraint Lewis - this video was based on his paper "On the relativity of...

How A Supernova Measured The Universe

In 2015 astronomers successfully predicted the appearance of a supernova within a couple weeks. How did they do it? Win your Ultimate Tech Bundle by entering Fasthosts’ Techie Test here: https://fasthosts.com/veritasium (Competition now closed) This video was sponsored by Fasthosts. Special thanks to Geraint Lewis for consulting on gravitational...

Why Gravity is NOT a Force

The General Theory of Relativity tells us gravity is not a force, gravitational fields don't exist. Objects tend to move on straight paths through curved spacetime. Thanks to Caséta by Lutron for sponsoring this video. Find out more at: https://www.lutron.com/veritasium Huge thanks to Prof. Geraint Lewis for hours of consulting on this video so I...

The Infinite Pattern That Never Repeats

Simples rules of geometry meant that 5-fold symmetry was impossible as were crystals without a periodic structure. This turns out to be wrong. Thanks to LastPass for sponsoring a portion of this video. Click here to start using LastPass: https://ve42.co/LPs Huge thanks to Prof. Paul Steinhardt for the interview on this topic. Check out his book ‘The...

How Kodak Detected the Atomic Bomb

Kodak detected the first atomic bomb before anyone else figured it out. Then they made a deal not to tell anyone. Thanks to HBO Max, and their new show raised by Wolves for sponsoring this video! https://rb.gy/alghwn Thanks to Uranium: Twisting the Dragon's Tail for the opening clip: https://www.pbs.org/show/uranium-twisting-dragons-tail/ References:...

Is Success Luck or Hard Work?

In a competitive world, tiny advantages can make all the difference. Get 10% off Snatoms with code 'giveluck' in the US: https://ve42.co/USA or International: https://snatoms.com If you would like to receive Snatoms, submit the form here: https://ve42.co/getluck Snatoms are also available on Amazon Prime in the US but with no discount code: https://ve42.co/Asnatoms...

Is Dust Mostly Dead Skin?

People claim that 70-80% of household dust is dead skin, but is it true? Thanks to Google for sponsoring this video! Learn more about Search here: https://www.google.com/search/howsearchworks/ Special thanks to J.M.E.H van Bronswijk, author of 'House Dust Biology'. We exchanged emails to make sure I got my facts straight for this video. Below is...

Half the universe was missing... until now

Half of the ordinary baryonic matter has been tough to find but Fast Radio Bursts made it possible to detect the WHIM. Thanks to Kiwico for sponsoring this video! For 20% off go to https://kiwico.com/veritasium or use code VERITASIUM at checkout. Special thanks to Prof. Geraint Lewis https://ve42.co/gfl Nature paper: A census of baryons in the...

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