The thread that will make your brain hurt.

[DunceCap]

light can and does bend. a vaccuum is used to eliminate variables. the speed of light does not change, what changes is the space the light occupies, and it is this space that we can measure as well. In the end, one can see that it would be near impossible to measure the remaining space.

subtracting from the universe all "hot matter" and measure what is left = dark

once you have the dark, you measure the length of time it took you to find the dark = speed

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next

[re_fuse]

Why is there pubic hairs in the soap ?

[howdooski]

So if light is bent at 360 degrees inside a vaccuum...and the start reaches the end, does that mean I have just invented time travel...?

[blackjack]

light can and does bend.

Yes but how heavy is light?

[LoveBucket]

Thereby, traveling at 100 kph back to you it would need to cover twice the distance so take twice as long.

again,twice as long as what, mate.
surely the source of the light (and the light) travelling away would never be visible to me if the whole caboodle was going away at the speed of light

[re_fuse]

Yes but how heavy is light?

I think 2.2 if it is a tooheys mate


http://en.wikipedia.org/wiki/Tooheys_New

I'm an old man my self

[crew]

Yes but how heavy is light?

that's some heavy shit man.:smoker:

[re_fuse]

I think is if very light

[DunceCap]

Yes but how heavy is light?

by measuring the mass of the photon particles
one could then measure the field and mulitply.

sure about that?

the speed of light does not change. What may change are the instruments we should to measure it.


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Gravitational pull has an affect on mass, but it only refracts the light.
adjust the result by the temperature changes or remove the variables as mentioned before.

[re_fuse]

Has anyone here ever smelt Moth Balls ?

[DunceCap]

^through a translucent material it is the same. the material is only blocking the light. It enters at the same speed.

now, light emitted from inside a translucent material is another story. The denser the matter, the more light it blocks.

[re_fuse]

Sorry my friend, but I think you are wrong here. The speed of light is only constant in a vacuum. Through a transparent or translucent material, the "speed of light" is slower.
-j-

Different colored light travel at different speeds and have different wave lenths.

infra red .....ultra violet ect

I think there are spectrum charts that have the measurements

Red light travels slowly ,which paradoxicaly on a car causes the copper to thingk your going faster that you actualy are.

I wounder If Eienstien could of helped me with my traffic fines>

[DunceCap]

^dude I was spinning this stuff off the top of my head. Although astro-physics, quantum physics, and other such subjects are interesting, I claim to be no authority on the matter.

and more to the point, I was answering the speed of dark, and thus removed the speed of light from my equation.



a light shining in the distance will continue to shine whether you can see it or not. as long as the sight line remains constant, all the space leading up to the point of visibility is measureable dark. The speed is then equated by the distance covered.

[re_fuse]

What if God realy spelt Dog ?

[Big Bill]

At what speed am I drinking my beer'n'whisky then??