Baby universes

CountD · Post by **CountD** » Tue Mar 24, 2009 4:50 pm

That does not work for me.

/outsider

CountD · Post by **CountD** » Tue Mar 24, 2009 4:50 pm

Q: Is it possible to slow light down?

MGM · Post by **MGM** » Tue Mar 24, 2009 6:05 pm

No, it's proven (by theory) that light does not ever slow down.

CBKA · Post by **CBKA** » Wed Mar 25, 2009 12:22 pm

I thought the speed of light was relative to the density of the object it was passing through?

MGM · Post by **MGM** » Wed Mar 25, 2009 1:52 pm

No, not really. Light has a fixed speed. Dense objects merely bend light, they don't slow it down. The relative part of light is that the faster you go, the slower time goes (which is relative). That's why light seems to go as fast as when your standing still when you're going at almost lightspeed.

CountD · Post by **CountD** » Fri Mar 27, 2009 8:01 am

MGM wrote:No, it's proven (by theory) that light does not ever slow down.

JLT vol 26: 23 December 2008, Introduction to the Feature Issue on Slow Light and Its Applications

"We have been accustomed to thinking of the speed of light as being a fundamental constant, as it is for propogation through vacuum, or of having close to the vacuum speed, as when light propogates through optical materials. Yet it has recently become clear that tools exist that allow one to slow down, speed up, or even completely stop light propogation. >...."

I can ship you a copy of it if you want; very interesting stuff.

-CountD

MGM · Post by **MGM** » Fri Mar 27, 2009 8:52 am

A scan would work nicely as well, but I'd love to read that article.

CountD · Post by **CountD** » Fri Mar 27, 2009 8:57 am

pm me your email. I checked your profile and didn't see it at a glance.

I'd be happy to

CountD · Post by **CountD** » Fri Mar 27, 2009 12:55 pm

I just sent you the editorial.

CBKA · Post by **CBKA** » Sat Mar 28, 2009 7:38 pm

yeah thats kinda alon the lines of what i heard.

I was tols that the speed of light was only constant in space

CountD · Post by **CountD** » Fri Apr 03, 2009 5:59 am

In theory and limited application, light can be filtered, slowed down, etc...they are experimenting with it now.

Lasers, also cool.

CBKA · Post by **CBKA** » Fri Apr 03, 2009 1:45 pm

Does this mean i was right?:uhoh2:

Mr Wallstreet · Post by **Mr Wallstreet** » Sun Apr 05, 2009 6:06 pm

CountD wrote:Do you guys get antimatter?

I read Crisis on Infinite Earths so I know all I need to know about anti-matter thank-you-very-much

CountD · Post by **CountD** » Wed Apr 08, 2009 1:06 pm

There was a good issue of US Science & News lately. Spotlight on Einstein.

I bought it for my wife, as she is equally geeky. Loved it.

CountD · Post by **CountD** » Fri Apr 10, 2009 7:25 am

Time....

Is it a contant fixed period or endless?

Is the concept of time fundamentally misunderstood? Is it a 'construct' we're in? Is it an illusion necessary to give life meaning?

what do you all think...?