How bright can light shine?
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How bright can light shine?

[From: ] [author: ] [Date: 11-05-12] [Hit: ]
And velocity. ?? Thanks.-The only upper limit to intensity of light, or temperature,......
In physics. Is there a maximum brightness of which light can shine? And temperature? And velocity. ?? Thanks.

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The only upper limit to intensity of light, or temperature, is the amount of energy available. With enough energy, any intensity or temperature is achievable.

The upper limit of velocity is the speed of light: 299,792,458 meters per second.

Massless particles (eg photons) in a vacuum travel at precisely this speed, and less that this speed in any other medium.

Anything which has a non-zero mass will always travel slower than the speed of light. It can get very, very close to the speed of light, but never actually reach it.
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