Mass-Energy Conservation

Graphic - massenergy

Normally, we think of mass and energy begin separately conserved. However, in 1905, Einstein showed that mass can be considered another form of energy, expressed in the all too famous equation for the rest mass energy of a body:

E=mc2

In most chemical reactions for example, the amount of mass transferred into energy is minute. However, in nuclear reactions, as much as 0.1% of the mass initially present is transformed into other forms of energy.

The potential for exploiting this form of energy is immense. However, nobody has (yet) found a sufficiently clean and safe means of delivering this energy.