Surely you were calculating the speed of microwave radiation,
rather than the speed of light?
( monster munch person, man, woman... camera... TV?, Fri 14 Oct 2011, 12:33, 2 replies)

*facepalm*
And there is no worse *facepalm* than a geek *facepalm*
( Scaryduck LIKES EGG, Fri 14 Oct 2011, 13:45, closed)

facepalm

You only “know” that the speed of microwave radiation is the same as speed of light because you’ve been told it’s so, third hand.

This guy is working from tomato soup based observations relating to microwaves and only microwaves.
( Ring Of Fire A petty, drooling belming butthurt retard., Fri 14 Oct 2011, 14:58, closed)

Eh?
The observable phenomenon was the action of the microwave radiation, thus the calculations described derive the speed of the microwaves (the fact that the speed is equal to the speed of light is coincidental).

If you're in a position to know that the speed of microwaves is equal to the speed of light, then odds are that you already know the speed of light, and thus don't need to calculate it (until RoF posted, I wasn't aware of the speeds being equal).
( monster munch person, man, woman... camera... TV?, Fri 14 Oct 2011, 18:40, closed)

He calculated the speed of electromagnetic radiation in air
Light is our word for EM radiation of wavelength 400-700nm, microwaves is our word for EM radiation with a wavelength on the order of a few centimetres. It's all photons in the end.
(Petite chien is going to do science to it, Fri 14 Oct 2011, 21:55, closed)

How do photons have wave lengths?

( Ring Of Fire A petty, drooling belming butthurt retard., Sat 15 Oct 2011, 17:03, closed)

The deBroglie equation

(Petite chien is going to do science to it, Sun 16 Oct 2011, 12:14, closed)