Baby universes

The infinite quest for knowledge and wisdom. Come on in and debate.

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CountD
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Post by CountD »

That does not work for me.

/outsider

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CountD
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Post by CountD »

Q: Is it possible to slow light down?

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MGM
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Post by MGM »

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

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CBKA
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Post by CBKA »

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

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MGM
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Post by MGM »

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.

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CountD
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Post by CountD »

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

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MGM
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Post by MGM »

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

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CountD
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Post by CountD »

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

I'd be happy to

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CountD
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Post by CountD »

I just sent you the editorial.

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CBKA
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Post by CBKA »

yeah thats kinda alon the lines of what i heard.

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

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CountD
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Post by CountD »

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

Lasers, also cool.

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CBKA
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Post by CBKA »

Does this mean i was right?:uhoh2:
:chewie:

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Mr Wallstreet
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Post by Mr Wallstreet »

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 :smug:

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CountD
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Post by CountD »

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.

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CountD
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Post by CountD »

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...?

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