a thoughtful web.
Good ideas and conversation. No ads, no tracking.   Login or Take a Tour!
WingedFoe's profile
WingedFoe

x 1

stats
following: 1
followed tags: 1
followed domains: 0
badges given: 0 of 0
hubskier for: 4524 days

recent comments, posts, and shares:
WingedFoe  ·  4524 days ago  ·  link  ·    ·  parent  ·  post: Quantum levitation
Here's what was linked in the video description: http://www.quantumlevitation.com/levitation/The_physics.html

"We start with a single crystal sapphire wafer and coat it with a thin (~1µm thick) ceramic material called yttrium barium copper oxide (YBa2Cu3O7-x ). The ceramic layer has no interesting magnetic or electrical properties at room temperature. However, when cooled below -185ºC (-301ºF) the material becomes a superconductor. It conducts electricity without resistance, with no energy loss. Zero."