OFFTOPIC: physics question

Steve Kinney admin at
Mon May 13 19:32:39 PDT 2019

On 5/13/19 2:12 PM, \0xDynamite wrote:
>> On 5/12/19 9:59 PM, \0xDynamite wrote:
>>> Sorry for this little diversion,
>>> If light travels at a. different speed for different colors in order
>>> to account for the rainbow of a prism, how fast is the. speed of light
>>> then?
>> The speed of light is a physical constant.  The frequency (or
>> wavelength) of a photon determines its energy and therefore, to the
>> human eye, its color.
> If light's speed is a physical constant, then light wouldn't separate
> into colors within a prism.

Because light's speed is a physical constant, light separates into
colors when passing through a prism.

The higher the frequency of a photon, the higher its energy.  Since more
energetic photons can not speed up, and less energetic photons can not
slow down, they behave AS IF they had more or less 'mass.'

Higher and lower energy photons deflect slightly more or less when
forced to change direction in a refractive medium, in a way analogous to
heavier and lighter moving objects acted on by, for instance, the wind...


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