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Ask Ethan: Could we build a collider bigger than Earth?
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?
Ethan Siegel
Aug 16
3 big lessons from Einstein’s most famous equation: E=mc²
3 big lessons from Einstein’s most famous equation: E=mc²
More than any other equation in physics, E = mc² is recognizable and profound. But what do we actually learn about reality from it?
Ethan Siegel
Aug 15
How a failed experiment led to Einstein’s first big revolution
How a failed experiment led to Einstein’s first big revolution
The Michelson-Morley experiment of 1887, despite expectations, revealed a null result: no effect. The implications were revolutionary.
Ethan Siegel
Aug 14
Einstein’s big insight that explained Newton’s law of gravity
Einstein’s big insight that explained Newton’s law of gravity
For centuries, Newton’s inverse square law of gravity worked beautifully, but no one knew why. Here’s how Einstein finally explained it.
Ethan Siegel
Aug 13
5 big surprises when comparing the worlds in our Solar System
5 big surprises when comparing the worlds in our Solar System
From size to mass to density and more, each world in our Solar System is unique. When we compare them, the results are truly shocking.
Ethan Siegel
Aug 12
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