Where did quantum theory come from? It started, not as a crazy idea, but with a light bulb. In the early 1890s, the German Bureau of Standards asked Max Planck how to make light bulbs more efficient...
Did you know that if the sun were fueled by combustion of, say, gasoline or wood, it would burn out in just a few millennia? So how is it still here after 4.5 billion years? Physics. The sun is like a...
We see particle-like behavior every day: drop a ball on the ground and it follows a single trajectory, leave your giraffe parked on the street and when you come back, it's still there, just...
[Morgan Freeman] So. What are we really made of? Dig deep inside the atom and you'll find tiny particles held together by invisible forces. (held together by invisible forces.) Everything is made up...