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> No cosmologist uses "matter" when they mean "protons" for example. They will call that "baryonic matter".
by elashri 2y ago
> No cosmologist uses "matter" when they mean "protons" for example.
They will call that "baryonic matter".
- danparsonson 2y agoNo, they'd call them protons; baryons are a class of particles, of which protons are a member.
- elashri 2y agoThis is what a particle physicist use the term for. But for cosmologist on the question of matter composition they will use the term in different way. I was replying to exactly the quote from your reply.