Physics 01
Is Warp Drive Possible? The Alcubierre Energy Bill
Is warp drive possible? Alcubierre's 1994 metric is valid relativity, but it needs negative energy. We compute how much and check the newer claims.
science fiction
Physics 02
Could a Lightsaber Exist? The Physics, With Numbers
Could a lightsaber exist? We compute the power to cut a blast door, why laser beams pass through each other, and why no magnet can hold a plasma blade.
Physics 03
Could the Dune Ornithopter Fly? Hover Power, Calculated
Could the Dune ornithopter fly? Momentum theory says its huge wings need less hover power than a helicopter. The real problems are wing mass and flapping.
Space 04
3 Body Problem: The Real Physics of Trisolaris
We simulate a real three-body system in Python, show how chaos ends Trisolaris's stable eras, and explain why the real Alpha Centauri is calm.