/sci/ - Science & Math

[Anonymous No.1931171]

/sci/ducks,
If KE=1/2mv^2
then why doesnt E=1/2MC^2

Why do we make the assumption that all light travels at exactly the same speed?

[Anonymous No.1931177]

>>1931171
Because it does.
Wave = constant speed

[The Jew: Aether !uipCI.PwdY No.1931181]

Because it doesn't.
Science = Bull Shit

[Anonymous No.1931200]

>>1931177
wave=constant speed, but what happens if the wave lenght is decreased further, like going from blue to red light? We assume the frequency is the only thing affected but how do we not know its just the velocity being affected?

KE=1/2mv^2 seems a reasonable way to explain the different temperature of faster moving light.

[Anonymous No.1931209]

Bumping for Physics doctorates

[sage No.1931210]

>>1931181
so why are you on /sci/ then?

[sage No.1931215]

This is not an assumption.
It has been tested numerous times, all light in vaccum travels at the same speed.

\thread

[sage No.1931230]

>>1931200
"temperature" is a statistical property of a volume, it is not a property of a single particle. Light does not have a "temperature".

[Anonymous No.1931238]

>>1931215
Just because you say it has been tested doesn't mean it actually has. Einstein just said E=MC^2
Which in words means that the energy of a photon is relative to its mass multiplied by "the speed of light" squared. This does nothing for me in terms of proving the speed of light. Someone needs to explain how it has been tested and proved.

[Anonymous No.1931248]

energy of light =/= kinetic energy
the only reason the two equations look similar is because energy always has the same units, and one way to write it is mass*v^2

[Anonymous No.1931262]

>>1931230
I was referring to to Johanne Ritter's experiment with a prism where he found that the temperature of the area of his desk that was struck by different colours of light actually varied. He proved the presence of ultraviolet light through this difference of temperatures.

Perhaps the variant velocity of light was what causes the difference in temps. Not solely the frequency. But how could we even make a frequency calculation when we don't know the velocity is certainly constant?

[Anonymous No.1931263]

>>1931181
Someone can dox this fag?

[sage No.1931268]

>>1931238
They measure the speed of light in various rerference frames. It is always constant!

This has bee done many many many times.
IT IS AN ACTUAL EXPERIMENT! LOOK IT UP!

[sage No.1931279]

>>1931263
Dont worry, aether will be killed sometime this year.

[The Jew: Aether !uipCI.PwdY No.1931304]

>>1931279
Yeah, I'll be waiting for the 'ultra-nerd' crew to walk over the horizon ;)