Laser used to measure gravity! Totally new idea:
02 Sep '10 03:38http://www.physorg.com/news202563395.html
Using a laser beam to levitate a 300 micron glass bead, it is very sensitive to gravity, enough that a gold bar next to it will register. Amazing new idea from NIST!
Using a laser beam to levitate a 300 micron glass bead, it is very sensitive to gravity, enough that a gold bar next to it will register. Amazing new idea from NIST!
