The video also explains the more common concept of reaction wheels so the two systems can be contrasted and compared. It all culminates in a wonderful practical demonstration with a small 3D ...

Reaction wheels are useful things, typically used by satellites to keep themselves oriented the right way up in space. Turning the reaction wheel creates an equal and opposite torque in the ...

Can we make a reaction wheel using liquid metal and the Magnetohydrodynamic effect? Senate votes to avoid government shutdown as 10 Democrats vote with Republicans Thinking of selling your Tesla?