Shared June 8, 2017
Grant Thompson - the King of Random - teaches me how to start a fire with a Sandwich bag. And we tried to melt glass in my backyard: https://goo.gl/zb0uE0
Check out his channel: http://ve42.co/KoR
The intensity of sunlight on Earth is about 1300 Watts per square meter. When you focus the sun's rays using a magnifying glass (or in this case sphere of water) you can increase the intensity roughly ten thousand fold. This increases the temperature of wood to its autoignition point starting the reaction with oxygen in the atmosphere. By protecting the hot embers and adding more energy and fuel, you can get these hot coals to start a roaring fire.
Special thanks to Patreon Supporters:
Tony Fadell, Donal Botkin, Jeff Straathof, Zach Mueller, Ron Neal, Nathan Hansen
Support Veritasium on Patreon: http://ve42.co/patreon
How To Make A Rope Making Machine | Incredible Survival Hack
4 Revolutionary Riddles
World's Lightest Solid!
Why Are 96,000,000 Black Balls on This Reservoir?
I Waterproofed Myself With Aerogel!
This Toy Can Open Any Garage
Turning Pencil Lead into Diamonds
How Was Video Invented?
Why Machines That Bend Are Better
How Microwaving Grapes Makes Plasma
Top G-Force Things Ever
Making Liquid Nitrogen From Scratch!
We Made an Accidental Discovery
How To Firebend IRL (aka The Human Torch)
Top Strongest Acids Ever
Argh. Why Is Copper So Difficult?
World's Heaviest Weight
Why Women Are Stripey