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A comment on Electron Band Structure in Germanium, My Ass. Parent comment

Re:Electron Band Structure in Germanium, My Ass by thaumasiotes on Tuesday April 01, 2025 @04:26PM (#43550968)
> You drop one end of the rope in the water, and count how many knots pass you in a given time.

Given that you're dragging the rope behind you, won't this number be zero?

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Re:Electron Band Structure in Germanium, My Ass by flir on Tuesday April 01, 2025 @05:11PM (#43551392)
The rope has a mechanism for creating drag (a wooden board) at the end, and regularly spaced knots. You throw the board in the water, let the rope play out through your hands, and count the knots as they pass through your hands while watching a timer.
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