Speed of light Reducing

I read it. What about it?

You didn't notice who I said that was according to?or didn't you learn to read every thing??

I read somewhere that someone had managed to slow light down to something like 240mph. How it was done I have no idea, wether its even true or not is anyones guess too, but I'm pretty sure it can be slowed. Just not sure of how much by tho.

I did notice that you mentioned NASA, but that doesn't change the fact that your "6 pounds" comment is completely meaningless and totally wrong.

P.S. The rude, snarky comments don't make you look better.

That's not what jmo is talking about. It's a basic property of light that its speed varies depending on the medium it's traveling through. Light moves more slowly through glass than through air, for instance.

However, jmo is referring to the speed of light in a vacuum slowing down over time. In other words, he's wondering if the fundamental properties of nature itself aren't necessarily constant - the charge on an electron, the mass of a quark, the speed of light, etc. It's certainly a possibility, and one that has been proposed by a number of physicists.