Atomic Theory

‘[…] when atomic theory was first proposed, it sounded pretty crazy. And yes, we call it ‘Atomic Theory’, using the scientific definition of theory, which is “a well-tested set of ideas that explains many disparate observations”, not the colloquial definition of theory, which is “a guess.” But luckily there’s no-one running around any more saying “atoms are just a theory.”

But it wasn’t that long ago that people were running around saying that. You want to know who settled it for good? Einstein! Atoms had been postulated for a long time by the 20th century, but it wasn’t until Einstein mathematically proved the existence of atoms and molecules in 1905 that the matter was truly settled. And you thought Einstein was all about relativity and E=mc2, he also proved atoms exist! Continue reading