Ethan SiegelinStarts With A Bang!Relativity: the oldest physics principle that’s still correctThe original principle of relativity, proposed by Galileo way back in the early 1600s, remains true in its unchanged form even today.13h ago213h ago2
Ethan SiegelinStarts With A Bang!Our cosmic home is typical for stars, but not for galaxiesMost stars in the Universe are located in big, massive, Milky Way-like galaxies. But most galaxies aren’t like ours at all.1d ago61d ago6
Ethan SiegelinStarts With A Bang!Ask Ethan: Could we build a collider bigger than Earth?The largest particle accelerator and collider ever built is the Large Hadron Collider at CERN. Why not go much, much bigger?4d ago54d ago5
Ethan SiegelinStarts With A Bang!3 big lessons from Einstein’s most famous equation: E=mc²More than any other equation in physics, E = mc² is recognizable and profound. But what do we actually learn about reality from it?5d ago95d ago9
Ethan SiegelinStarts With A Bang!How a failed experiment led to Einstein’s first big revolutionThe Michelson-Morley experiment of 1887, despite expectations, revealed a null result: no effect. The implications were revolutionary.6d ago86d ago8
Ethan SiegelinStarts With A Bang!Einstein’s big insight that explained Newton’s law of gravityFor centuries, Newton’s inverse square law of gravity worked beautifully, but no one knew why. Here’s how Einstein finally explained it.Aug 1310Aug 1310
Ethan SiegelinStarts With A Bang!5 big surprises when comparing the worlds in our Solar SystemFrom size to mass to density and more, each world in our Solar System is unique. When we compare them, the results are truly shocking.Aug 123Aug 123
Ethan SiegelinStarts With A Bang!Starts With A Bang podcast #108 — A future particle colliderToday, the Large Hadron Collider is the most powerful particle physics experiment in history. What would a new, successor collider teach…Aug 102Aug 102
Ethan SiegelinStarts With A Bang!Ask Ethan: Can we detect dark matter if it’s truly collisionless?Dark matter’s hallmark is that it gravitates, but shows no sign of interacting under any other force. Does that mean we’ll never detect it?Aug 912Aug 912
Ethan SiegelinStarts With A Bang!Your guide to 2024’s Perseid meteor showerPeaking on the night of August 11/12, up to 100 bright meteors per hour will be visible. Here’s how to make the most of it.Aug 818Aug 818