At the beginning of the 20th century, many scientists thought that we had learned all there was to know about physics. The problem is, the better we get at measuring things and building models...
========== At the beginning of the 20th century Many scientists started thinking that Physics was pretty much over Surely we have a few unsolved mysteries left but it seemed like they could all be ironed out with better measurements, or maybe with very slight tweaks to what was already known The problem was, those mysteries didn't go away with better measurements and slight tweaks They led to fundamental revolutions in our understanding of nature Huge, important things, like Relativity and Quantum Mechanics Now that we've discovered those things, though, It might sometimes feel like there are, once again, just a few small problems left for physicists to solve before we can say we know everything About how the universe works Here are 5 of those problems that a...