fredag den 23. januar 2009

Bill Nye: Oprindelse og evolution

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fredag den 16. januar 2009

søndag den 4. januar 2009

Mørk energi og det voksende univers

The University of California, Berkeley, af Alex Filippenko 2008



World-renowned astronomer and prize-winning professor of astronomy at the University of California, Berkeley, Alex Filippenko, explores some of the mysteries of the universe at a special lecture at the Santa Barbara Museum of Natural History. Filippenko discusses observations of very distant exploding starts called super-novae that provide intriguing evidence that the expansion of the universe is now speeding up. Over the largest scales of space, the universe seems to be dominated by a repulsive "dark energy" of unknown origin, stretching the very fabric of space itself faster and faster with time.

fredag den 2. januar 2009

James Randi tester Maureen Flynn 1991



James Randi tester Maureen Flynn 1991