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Oldest material on Earth discovered
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Stars roaring to life? How so?
I don't believe there's much sound to be had in a vacuum and I am also given to believe that there can be no sound if there is nothing to detect it...
So, if something was detecting sound 7.5 billion years ago, who/what was it? -
Originally posted by ladymuck View PostI am also given to believe that there can be no sound if there is nothing to detect it...Comment
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Originally posted by ladymuck View PostStars roaring to life? How so?
I don't believe there's much sound to be had in a vacuum and I am also given to believe that there can be no sound if there is nothing to detect it...
So, if something was detecting sound 7.5 billion years ago, who/what was it?
But probably not - I think the while roaring thing is a bit of poetic licence on behalf of the BBC.
Although as an aside apparently when people who have been deaf suddenly get to be able to hear they are surprised the sun does not make a noise....Comment
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They need to check the bottom of Admins wallet. I'm sure there is something older in there that hasn't been disturbed for eons.'CUK forum personality of 2011 - Winner - Yes really!!!!Comment
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Originally posted by ladymuck View PostStars roaring to life? How so?
I don't believe there's much sound to be had in a vacuum and I am also given to believe that there can be no sound if there is nothing to detect it...
So, if something was detecting sound 7.5 billion years ago, who/what was it?
I suspect the term is being used figuratively.Down with racism. Long live miscegenation!Comment
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Originally posted by ladymuck View PostStars roaring to life? How so?
I don't believe there's much sound to be had in a vacuum and I am also given to believe that there can be no sound if there is nothing to detect it...
So, if something was detecting sound 7.5 billion years ago, who/what was it?His heart is in the right place - shame we can't say the same about his brain...Comment
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We perceive atmospheric pressure changes in a certain range as sound. Those atmospheric pressure changes are, essentially, sound. Using special tools we can detect those pressure changes even beyond what we can hear. So yes, sound does exist even if there's no-one to hear it.
A more interesting question is whether the quantum wave function collapses if there's no-one to observe it?Down with racism. Long live miscegenation!Comment
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Wouldn't the particle be rather more likely to be the result of a stellar death?
As in a nova or a supernova?
That's when most of the metals* are produced from the primordial hydrogen, helium, & touch of lithium.
*Where "metals" are elements that are not H, He, or Li.When the fun stops, STOP.Comment
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