A couple of explanatory resources: Pulsars, and Relativity

Here are a couple of good educational resources that have come up in the last couple of classes. First, here's a link to the Jodrell Bank site where pulsar signals are translated into sound:

http://www.jb.man.ac.uk/~pulsar/Education/Sounds/sounds.html

And secondly, some great presentations of Einstein's arguments for Relativity, together with the counter-arguments of the time from proponents of the ether, courtesy of philosopher of science John Norton:

http://www.pitt.edu/~jdnorton/Goodies/index.html