The rotation time for the last gear would take 52433879932503535381614991275498187972589101825233846406570841889117043121149897330595482546 years to complete once
This thing is so cool!
Life finds a way
Dr. Jeffrey VanWingen, a US family physician, demonstrates how to grocery shop and handle take-out food safely
A scientific explanation and compelling visual demonstration on how/why soap is so effective
Aerogel has extraordinary properties
The trampoline was made from Kevlar and 144 garage door springs
