Helicopters and muscle memory
Flying a helicopter turns out to be much more like riding a bike than driving a car. Torque, counter torque and cyclic explain why.

It turns out that flying an helicopter is much more like riding a bike and not quite like driving a car.
Why is that so?
Well, because torque, counter torque and cyclic of course…
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Colonisation killed 90% of native Americans through disease. So why did no native plague travel the other way? London, alpacas and smallpox explain it.
Welcome. Wait, why?
Years of watching science videos have shaped how I think about the world. Starting here, I am going to share the ones that influenced me most.
Detonating purple powder
What happens when a balloon touches unstable nitrogen triiodide powder, filmed at 90,000 frames per second and slower than the speed of sound.