Fwd: Universe started with hiss, not bang

[david turgeon <dt@xxxxxxxxxxxxx>]

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Electromagnetic News & Views -- #118
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[...]

Universe started with hiss, not bang // audio file of the first million
years...
<http://www.newscientist.com/news/news.jsp?id=ns99995092>

	'The variations in the cosmic background radiation expose the relative
clumpiness of the early cosmos at a variety of different scales. These
density variations began as quantum fluctuations in the moments after
the big bang, and then propagated out as sonic waves. The denser
regions became the seeds of galaxies and stars, which is why
astronomers are so interested in them.' .. 'Translating the observed
frequency spectrum directly to sound yields tones far too low for ears
to hear - some 50 octaves below middle A - but transpose the score up
all those octaves and you can listen to it.'

[...]

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