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# Tag Archives: mass energy

## Nuclear Fission and Fusion

H **Manishankar** Asked:

which releases more energy?fusion or fission?

**Ans**:

per fission energy is more for fission, Per unit mass energy released is very much more for fusion

**Mani again:**

ok..bt our nuclear weapons are not powerful enough .. their energy is infinitesimally smaller than d energy released in natural process like earthquake volcano

**Ans**: Nuke weapons are targeted and sufficient to produce local destruction

## Matter, Antimatter and Einstein’s equation

It is my understanding that when **antimatter** comes in contact with matter that there is nothing left but pure energy.

And since energy and matter are interchangeable (E=Mc^{2}) doesn’t that mean you are actually left with all matter and no antimatter?

*Asked Ken*

**Answer**:

The equation **E = mc ^{2}** tells about

**mass – energy relation**and both matter and antimatter has a

**positive mass.**