# Feynman-Smoluchowski ratchet

> English word · Noun

## Definitions
1. Synonym of Brownian ratchet.

## Etymology
First analysed by Polish physicist Marian Smoluchowski, and popularised by American theoretical physicist Richard Feynman.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/feynman-smoluchowski-ratchet