BBC Focus Magazine

[ajaysharma4]

E=mc2 is well know in science.
It is speculated not derived logically.
For example see derivation
Einstein, A Ann. der Phys. 18 (1905) 639-641.
http://www.fourmilab.ch/etexts/einstein/E_mc2/www/

More details http://www.AjayOnLine.us

[M Paul Lloyd]

Hello there ajaysharma4, some mind boggling equations in there I see.

In the hope of cutting to the chase am I correct in thinking that this is based upon the principle that a hot body, whilst possesing greater energy has the same mass/gravity/inertia as a cold one?

[Shadowwolf]

Oh you again.

Sorry Mr M but I do believe this guy is just trying to drum up traffic for his equally incomprehensible site and not looking for any discussion, we certainly got none off his last posting here. Just another physics crank by the looks of things.

Well at least you've placed it in an appropriate place this time, under 'science fiction'.

[M Paul Lloyd]

I did wonder.

Thing is, if I'm reading it correctly it is rather anomalous that a bodies total energy is not linked to its linked to its kinetic energy, and I'm just wondering if this isn't similar to how light can have energy but no inertia?

[fff888]

Yes, Einstein did not prove the formula E=mc2 correctly. He did not invent this formula either. But the formula is correct of course. It would be much more useful if you people read about superconductivity.

[Shadowwolf]

It would be much more useful if you people read about...

Why?

[Shadowwolf]

Judging by the lack of response I'm guessing the only reason for reading is to supply that site with traffic, however, after seeing the silly suggestion that the pyramid builders or "druids" may have used superconductor technology I reckon there is little to be seen there.

[M Paul Lloyd]

Ah well now, there's their first big error as I take it that they assume the Druids had something to do with the construction/use of Stonehenge?

Well as it happens the Druids were the advocates of a woodland religion which had nothing at all to do with any circular monument of stone, wood or otherwise.