Einstein: right or wrong (Introduction)

by David Turell , Thursday, January 24, 2013, 15:08 (4322 days ago)

A wonderful discussion of gravitational and inertial mass. Are they the same or different?
http://www.newscientist.com/article/mg21729002.000-sacrificing-einstein-relativitys-keystone-has-to-go.html?page=3-Sign in for a great discussion