"If the sun were to suddenly disappear (explode) would the gravitational effects of that be experienced here on earth instantaneously or eight minutes. I guess I am asking if information can travel faster than the speed of light?"
-Tom Wells (age 62)
Does A Black Hole Accelerate Light?
So Hot You Can't See It?
Pushing On A Bar At One End
Moments In Time And Photographs
What Is The Vibrating Length Of A Guitar String?
Acceleration, Velocity, And Work
Why Do 'perpetual Motion' Toys Need Batteries?
Re-pressurizing Tennis Balls
6944 questions have been answered online since 1998 by volunteers from the Department of Physics at the University of Illinois' Physics Van outreach program. We've tried hard to make this the most reliable physics Q&A site on the Web, but no site is perfect, as we explain on this note. Our Baloney feature provides examples of how shaky many other sites are.
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