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BEGIN:VEVENT
DTSTART;TZID=Atlantic/Canary:20081127T000000
DTEND;TZID=Atlantic/Canary:20081127T010000
UID:iactalks-63
X-WR-CALNAME: IAC Talks: Open Astronomy Seminars
X-ORIGINAL-URL: /iactalks/Talks/view/63
CREATED:2008-11-27T00:00:00+00:00
X-WR-CALDESC: IAC Talks upcomming talks
SUMMARY:The abundance of primordial helium: a keystone in our understanding
  of the Universe
DESCRIPTION:The abundance of primordial helium: a keystone in our understan
 ding of the Universe\nDr. Valentina Luridiana\n\nPrimordial helium might s
 eem to be just a tiny piece in our understanding of how the Universe was b
 orn; still, it is a piece that must fit in if we are to ensure that the wh
 ole Big Bang scenario is consistent. During the last decade, a significant
  effort has been aimed at achieving the necessary accuracy to achieve this
  goal. While we still do not have a firm handle on it, we have learned qui
 te a few things on the way. The talk will provide a review of this quest, 
 highlighting the uncertainties that still remain and the feedback that it 
 has provided to our knowledge of how H II regions work.
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