光可加/减速度吗？

最近在想着一个的问题，光会加/减速度吗？
不知大家有什么看法/实验报告/资料呢？

光在不同的界面（如水，玻璃等）应该有不同的速度吧？

如光从真空射入玻璃，其速度将会减低。是吗？

读物理的朋友，麻烦请指正。。。

*我有没有误会题目?*

[ Last edited by jwyong on 12-7-2004 at 10:01 AM ]

Just now got some info about the light of speed,now sharing it v u guys.

Light might be affected by gravitation,additional speed will occured in our mind. But in reality, the speed of light remains constant, it's the space and time that change.
The speed of light in medium is indeed slower, but please be reminded that it is that speed of light that concerned, not light itself. 299792458m/s is always unbeatable, whatever the medium.
sorry tat din wrote in chinese,cos typing chinese really takes my times.

[ Last edited by vf on 12-7-2004 at 02:42 PM ]

jwyong 于 12-7-2004 09:59 AM  说 :
光在不同的界面（如水，玻璃等）应该有不同的速度吧？

如光从真空射入玻璃，其速度将会减低。是吗？

读物理的朋友，麻烦请指正。。。

*我有没有误会题目?*

[ Last edited by jwyong on 12-7-2004 at ...

Yes,I agree.Original speed of light cannot be fasten,because it already in maximum speed.But, it can slowen by pass though a different refractive index objects.

gsan

光速在vacum时最快,目前只有黑洞比光速更恐怖.

黑洞only has strong attraction that can attract light,not the speed e ???

这些都是猜测吧了。。。