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Jorrie
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Engineering Fields - Aerospace Engineering - Retired South Africa - Member - The Rainbow-nation Engineering Fields - Engineering Physics - Relativity & Cosmology Popular Science - Cosmology - The Big Picture!

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Any bets on gravitational waves?

07/04/2006 9:30 AM

Last August the bookmaker Ladbrokes opened the betting on detecting gravity waves by 2010 at 500:1. By now, the odds have shortened to 2:1. Professor Hough of Glasgow University reckons the chances of detecting gravitational waves over the next two years are something like 50:50, with a almost 100% chance by 2013. This is largely due to the projected improvement in sensitivity of the detectors. So…, would you bet on it?
Read more on gravitational waves and detectors here.

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Bayes
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Engineering Fields - Engineering Physics - Physics... United States - Member - NY Popular Science - Genetics - Organic Chemistry... Popular Science - Cosmology - New Member Ingeniería en Español - Nuevo Miembro - New Member

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#1

If a Quantum Vacuum is a Seething Foam....

07/05/2006 10:37 AM

...And particles and their antiparticle equivalents are constantly being created and then destroying themselves, why couldn't gravity waves dissipate as they travelled through this sea of appearing and disappearing mass?
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Jorrie
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Engineering Fields - Aerospace Engineering - Retired South Africa - Member - The Rainbow-nation Engineering Fields - Engineering Physics - Relativity & Cosmology Popular Science - Cosmology - The Big Picture!

Join Date: May 2006
Location: Pretoria, South Africa
Posts: 3804
Good Answers: 69
#2
In reply to #1

Re:If a Quantum Vacuum is a Seething Foam....

07/06/2006 2:54 AM

In theory, gravitational waves do dissipate, but very slowly. The amplitude decreases linearly with distance from the source. Whether it is the "seething foam" of space that does it, I don't know.

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Bayes
The Engineer
Engineering Fields - Engineering Physics - Physics... United States - Member - NY Popular Science - Genetics - Organic Chemistry... Popular Science - Cosmology - New Member Ingeniería en Español - Nuevo Miembro - New Member

Join Date: Feb 2005
Location: Albany, New York
Posts: 5060
Good Answers: 129
#3
In reply to #2

Re:If a Quantum Vacuum is a Seething Foam....

07/06/2006 7:36 PM

I'll have to look around and see why it would dissipate. I wouldn't expect it to.
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