fromBig Think1 month agoThe incredible physics of quantum levitationThe idea of levitating off the ground has captivated human imagination, and quantum levitation demonstrates that specially-made materials can float indefinitely above magnets under the right conditions.Science
OMG sciencefromOpen Culture3 months agoLeonardo da Vinci's Elegant Design for a Perpetual Motion MachinePerpetual motion remains theoretically enticing but practically impossible due to energy loss and entropy constraints.