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cultureulterior comments on Harry Potter and the Methods of Rationality discussion thread, part 10 - Less Wrong
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That's just 15 joules per cubic meter of rock, until you get to the bomb. Not even detectable. I wonder, however, how the magic source is going to do turning energy back into matter afterwards.
Damn. Why are people not blowing things up with antimatter all the time?
Ignorance, high transfiguration skill level required, magical safeguards in place, possibly.
Makes sense. We could probably also build a power plant powered by transfigured antimatter.
Why would the magic source do that? Wouldn't the antimatter just react with the surrounding matter and turn into energy under the laws of physics, and stay that way?
How did you get 15J, by the way?
Cube root(number of atoms in a 1m^3 cube of silicon(simplification)=number of atoms in a one atom line, assuming that the atoms were arranged in an cubic crystal(simplification). Mass-energy of those atoms, times two (for complete destruction) and then subtract for the particles that do not decay immediately (I had to look that up, I think I got about 5/6th remaining)