Re: Speed of Light
From: Bjoern Feuerbacher (feuerbac_at_thphys.uni-heidelberg.de)
Date: 07/16/04
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Date: Fri, 16 Jul 2004 10:10:23 +0200
Turtle22 wrote:
>>Uncle Alwrote:
>
>
>>Idiot. Learn the difference between the four-vector and rest
>>mass.
>>
>
>
> Alright now, c'mon. Right now I'm 18 years old, I came up with this
> theory when I was 17 during my AP Chemistry class. I was bored, and
> we've never even learned about four-vector and rest mass. My god man,
> ease up some.
Perhaps you should have told your age and your level of education
before - I think then many people wouldn't have been so harsh to you. ;-)
> As for everyone else, thanks for the input, I've actually learned a
> little about all of this stuff. I've haven't been introduced to
> photons yet and this will probably help me when I do get started on
> them.
>
> As for orignal question, I understand that light doesn't have mass (I
> guess), but I want to know where my formula went wrong.
You formula went wrong because the "m" in E=mc^2 is *not* the thing
which is commonly called "mass" in physics today.
> If my formula
> doesn't have a mistake, then apparently there's a mistake in one of
> the equations.
The "mistake" is in popular science. The equation E=mc^2 is presented
without often without any explaining remarks - when it is applicable,
what the "m" in it means etc.
> And if that's the case then I'd like to look into that
> a little more.
Have you looked at the web page I gave you a link to?
[snip]
Bye,
Bjoern
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