I think probably the most important discovery was wave-particle duality. All matter can act like waves if you do tests to look for waves, and act like particles if you do tests to look for particles. Once physicists understood this, it opened the doors on so much more complicated science!
Another vote for waveicles (my pet name for something that is both a wave and a particle…..sorry….). Wave particle duality is hugely important and truly revolutionised how we see the world around us.
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Rob commented on :
Another vote for waveicles (my pet name for something that is both a wave and a particle…..sorry….). Wave particle duality is hugely important and truly revolutionised how we see the world around us.
Rob