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WITCHCRAFT!
(loot.buckodr.ink)
Be sure to follow the rule before you head out.
Rule: You must post before you leave.
That's also not quite true. Matter is "destroyed", or rather, converted into other forms of energy, when undergoing energy-positive fission or fusion.
The bonds that keep atoms together have mass due to the mass energy equivalence (binding energy). When those chains break or get rearranged, the amount of mass can change. A uranium nucleus has more mass than the sum of its individual parts. The energy you get out of fission does come from mass.
So when uranium atoms split into two daughter atoms, you do end up with less mass than you started out with.
Matter in general is not a conserved quantity, and we break this symmetry every second in our particle accelerators which both destroy and create new matter particles all the time. What is closer to a conserved quantity is energy (although even that isn't quite true on universe scales).
Yeah, that's more or less what I meant. It's not destroyed as in disappears, it's converted into energy, and... goes away, but that's still something.
I also realize we'd get less mass, some of it was blown away due to radiation after all, but the post implies that 100% disappears after decay.
Original post should probably not be taken too seriously, but this is this time when it was so wrong it made me uncomfortable :)
Fair fair