friday physics question

[jcommin]

Originally Posted by Scott R

Dr. Evil:

Any ways, the key to this plan is the giant laser. It was invented by the noted Cambridge physicist Dr. Parsons. Therefore, we shall call it the Alan Parsons Project.

LOL! laaaaaaaaaaaaaser!

[jcommin]

If you aimed a laser at the moon, don't you need to caluculate the time it takes for the light to travel atthat distance and project where the moon would be at that time. You wouldn't aim the laser directly at the moon, would you?

Yes sound does not travel in a vaccum, however if a tree falls in the forest and no one is there, it doesn't make a sound either.

[Por_sha911]

Originally Posted by jcommin

Yes sound does not travel in a vaccum, however if a tree falls in the forest and no one is there, it doesn't make a sound either.

Sound doesn't travel in a vacuum. I don't know about a vaccum (sorry, I couldn't resist).
A better question would be
If a man speaks and his wife is not there to hear him, is he still wrong?

[A930Rocket]

When my kids asked questions and I explained in detail, they lost interest and asked why I talked so much.

[svandamme]

No.

[svandamme]

Originally Posted by jcommin

If you aimed a laser at the moon, don't you need to caluculate the time it takes for the light to travel atthat distance and project where the moon would be at that time. You wouldn't aim the laser directly at the moon, would you?

The moon is only 1.2 light seconds away at most..

[jcommin]

Originally Posted by por_sha911

sound doesn't travel in a vacuum. I don't know about a vaccum (sorry, i couldn't resist).
A better question would be
i a man speaks and his wife is not there to hear him, is he still wrong?

yes!!!

[black73]

It all depends on the quality of the hallucinogens involved.

[dad911]

http://what-if.xkcd.com/13/

Are OP & I the only ones reading xkcd?

[lane912]

Originally Posted by dad911

Laser Pointer

Are OP & I the only ones reading xkcd?

it took long enough