Perpetual motion

Rarity: Rare

A topic known well beyond its field, found in many languages.

Rarity follows how well known the article is: its views on the French and English Wikipedia over a year, and the number of languages it exists in.

At a glance

Class

Notion

Domain

Science and technology

In collections

Nobody has pulled it yet.

What Wikipedia says

Perpetual motion is the motion of bodies that continues forever in an unperturbed system. A perpetual motion machine is a hypothetical machine that can do work indefinitely without an external energy source.

Excerpt from the Wikipedia article “Perpetual motion”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: Tiia Monto, CC BY-SA 4.0, via Wikimedia Commons.