best links of January

An excellent essay I happened to run across recently by Steven Weinberg (chief architect of the Standard Model of particle physics) on where Thomas Kuhn goes wrong:
http://www.cs.utexas.edu/users/vl/notes/weinberg.html

Ben Underwood's amazing Echolocation abilities (he's blind, but like a dolphin he makes clicks with his mouth to bounce soundwaves off objects to "see" them):
http://www.youtube.com/watch?v=DpBm4KoWsrY&eurl=

Discover Challenge: Explain String Theory in Two Minutes or Less
http://www.discover.com/twominutesorless/
(I'm very tempted to enter this contest)

Search music by singing or humming a song:
http://www.midomi.com/

Search soundfiles of political speeches for keywords (and related codewords):
http://pluggd.com/

A beautiful pyschedelic remix of Joe Rogan's thoughts on life and Dimethyltriptamine (DMT):
http://video.google.com/videoplay?docid=-2367246114827166749&q=shpongle

Chasers War on Everything -- Americans (warning, viewing of this video may permanently alter or destroy any positive connotation you have previously associated with the phrase "proud to be an American"--apparently, math isn't the only thing we suck at.):
http://www.youtube.com/watch?v=HCkYfYa8ePI

Emma's Language (another instance of an autistic having a different "natural language"--this one being more traditionally verbal than the last one I posted about):
http://www.youtube.com/watch?v=Hjb9tcYL5AA&eurl=