I have written a paper on the tethered galaxy problem. As this is more mathematical than my usual articles, I have put it separately at A look at tethered and untethered galaxies
Other websites
New: Tachyos.org - a site for expressing science in the form of computer software. Also take a look at einstein.org.uk, which questions whether Einstein's battle with quantum theory was really as futile as people say, and at CriticalPoints.org which has reviews and articles of a non-scientific nature.
CHRONON
This is the name for a hypothetical particle of time.