January 08, 2003
Non-Trivial

Love this casual sentence in the New Scientist's interesting piece on the measurement of the speed of gravity. (for those of you in a rush, gravity moves very, very fast.) "He reworked the equations of general relativity to express the gravitational field of a moving body in terms of its mass, velocity and the speed of gravity. If you could measure the gravitational field of Jupiter, while knowing its mass and velocity, you could work out the speed of gravity." Yes, elementary.

Posted by dbrown at January 08, 2003 10:49 AM
Comments

But what does it look like when the mass of galaxies actually warps space? Well, now we have pictures...

Posted by: Jed on January 13, 2003 12:26 PM

OK, you can see one... http://antwrp.gsfc.nasa.gov/apod/ap030109.html

Posted by: Jed on January 13, 2003 12:27 PM

I feel like this is an AA meeting: "Hi, Jed!"

Posted by: dbrown on January 13, 2003 09:37 PM

Can I have some coffee and sweets then?

Posted by: Jed on January 14, 2003 09:15 PM
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