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-   -   friday physics question (http://forums.pelicanparts.com/off-topic-discussions/708717-friday-physics-question.html)

jcommin 09-29-2012 08:19 AM
Quote:
Originally Posted by Scott R (Post 7003791)
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 09-29-2012 08:23 AM
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 09-29-2012 09:15 AM
Quote:
Originally Posted by jcommin (Post 7004353)
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 :p (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 09-29-2012 09:24 AM
When my kids asked questions and I explained in detail, they lost interest and asked why I talked so much. :(

svandamme 09-29-2012 09:26 AM
No.

svandamme 09-29-2012 09:27 AM
Quote:
Originally Posted by jcommin (Post 7004353)
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 09-29-2012 10:10 AM
Quote:
Originally Posted by por_sha911 (Post 7004431)
sound doesn't travel in a vacuum. I don't know about a vaccum :p (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 09-29-2012 11:57 AM
It all depends on the quality of the hallucinogens involved.

dad911 09-29-2012 12:35 PM
http://what-if.xkcd.com/13/

Are OP & I the only ones reading xkcd?

lane912 09-29-2012 03:04 PM
Quote:
Originally Posted by dad911 (Post 7004692)
Laser Pointer

Are OP & I the only ones reading xkcd?
it took long enough


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