Cognitive Scaffold

Preparing your thinking workspace

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MENTAL MODEL · M5918

Michelson-Morley Experiment

Michelson-Morley Experiment
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Version 1.0.0 · Updated 2026-07-30

CORE DEFINITION

The most famous 'failed experiment' in history. It aimed to detect the existence of the aether, but yielded nothing (a null result). It was precisely this 'failure' that falsified the aether theory and paved the way for the birth of special relativity.

SCAFFOLDING EFFECT

psychology

Reduce cognitive load

The value of negative results. When exploring the unknown (in scientific research or entrepreneurship), proving that 'this path is blocked' is as valuable as proving that 'this path is open'. It eliminates a huge wrong option and forces us to reconstruct the underlying theory.

anchor

Anchor fast decisions

If the aether existed, the speed of light would vary depending on the direction of the Earth's motion; the experiment used an interferometer to compare two perpendicular light paths, expecting to observe interference fringes shifting with direction. The result was almost no fringe shift, indicating that the aether does not exist and that the speed of light is constant.

MINIMUM ACTION

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Source support: Explicit

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    en.wikipedia.orghttps://en.wikipedia.org/wiki/Michelson%E2%80%93Morley_experimentZH · Explicit
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