Talk:BOOMERanG experiment

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Instrumentation[edit]

How were the bolometers kept so cold?

Thanks

CaptinJohn (talk) 12:52, 26 November 2007 (UTC)[reply]

with Helium under small pressure, see Evaporative cooling {{{Sheliak (talk) 13:09, 26 November 2007 (UTC)}}}[reply]

Thanks!!

CaptinJohn (talk) 11:53, 27 November 2007 (UTC)[reply]