Cosmic Background Radiation

[drwayne]

Ran into this this evening:<br /><br />http://arstechnica.com/journals/science.ars/2006/3/28/3335 <div class="Discussion_UserSignature"> <p>"1) Give no quarter; 2) Take no prisoners; 3) Sink everything."  Admiral Jackie Fisher</p> </div>

 

[bonzelite]

more on gravity waves. <br /><br />{yawn}

 

[newtonian]

The cosmic gravitational background (CGB). <br /><br />drwayne - that is from your link. Is that an official scientific terminology?<br /><br />The link also states that these would be on the lower end of the gravitational wave spectrum.<br /><br />Why? <br /><br />Would there be some kind of gravitational wave spectral shift comparable to red shift in electromagnetic (light) radiation?<br /><br />Note: electromagnetic radiation is often light; gravitational radiation tends to be heavy!<br /><br />Is 'heavy' derived from 'heavens' in origin or er: derivation?

 

[solidsnake]

Can anyone explain CBR is really simple terms? I don't understand how it's an "echo" or "baby picture" of the Big Bang.<br /><br />It seems crazy that any radiation emitted by the big bang would still be detectable today.

 

[enigma10]

Go get a bowl of water, set it on the counter and wait for the surface to be completly still. While waiting, imagine this bowl is the universe, and every second of our time is trillions of years for the bowl. Now, drop a small pebble or rock into it and wait for the ripples to disappear, imagining each second is trillions of years. Now this experiment is still off. You have to find a bowl that has no sides and somehow bends in on itself creating infinite space within a finite manifold. Without any resistance , those ripples are going to go for a very long time.<img src="/images/icons/wink.gif" /> <br /><br />Ripples = CBR<br /><br />Disclaimer: some may differ in thier view of what the universe size and shape is, but you get the idea... i hope. <div class="Discussion_UserSignature"> <em>"<font color="#333399">An organism at war with itself is a doomed organism." - Carl Sagan</font></em> </div>