You'll need more energy than the entire universe to spin the last gear once [video](youtube.com)
youtube.com
You'll need more energy than the entire universe to spin the last gear once [video]
https://www.youtube.com/watch?v=nFslB0AcVmM
1 comments
I find this amazing. Something you can see, touch, and build, yet it would be impossible to ever get that last gear to spin even once...