this post was submitted on 27 Sep 2023
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Antimatter still has a positive mass. It's not some exotic negative mass matter.
I'm pretty sure every physicist in existence knows that. It's just a simple principle that's really hard to test, so actually testing it is pretty cool. Like dropping a steel ball and a feather on the Moon.
Those are pretty expensive experiments. Are you sure they do them just because they are cool?
It's also an excellent proof of concept for how to test with antimatter. Anyone who designs a test using anti hydrogen will look back at their methodology.