# E=mc^2 for ordinary matter?

1. Dec 27, 2005

### pivoxa15

I saw in a TV show about E=mc^2 by NOVA that a physcist said that it was possible to convert the mass of for example, an ordinary pen into lots of energy through E=mc^2

I know how energy can be unlocked from Uranium atom but how could one unlock the energy from an ordinary pen?
Would it take more energy to make this transformation than the total energy got out?

Last edited: Dec 27, 2005
2. Dec 27, 2005

### masudr

If you had an equal number of anti-electrons and anti-protons etc. as the pen, and put them in the same points in space-time, you would have radiation. The energy of this radiation, $E$, and the mass of the pens $m_0$, would be related by

BJ