About 15,000,000 results
Open links in new tab
  1. Perpetual motion - Wikipedia

    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 …

  2. Perpetual motion | Definition & Facts | Britannica

    Nov 12, 2025 · Perpetual motion, the action of a device that, once set in motion, would continue in motion forever, with no additional energy required to maintain it. Such devices are impossible …

  3. What’s the physics behind perpetual motion machines, and why ...

    Mar 15, 2025 · Explore the fascinating physics behind perpetual motion machines and discover why they violate the laws of thermodynamics.

  4. Why is Perpetual Motion Considered to be Impossible?

    May 21, 2024 · The idea of perpetual motion sounds straightforward. An electric car powered this way could recharge its own batteries forever, and a clock could automatically rewind itself for …

  5. Is it possible to construct a perpetual motion machine?

    Oct 4, 2011 · The first part of the sentence (up to “velocity”) suggests that perpetual motion is not only possible but inevitable for any object already in motion. The second part of Newton’s first …

  6. 24.3: Perpetual Motion Machines - Physics LibreTexts

    Perpetual motion machines are devices that are purported to create useful work for “nothing” by violating some physical principle. Generally they are divided into two types, perpetual motion …

  7. What is Perpetual Motion? - BYJU'S

    Any motion that can be sustained without the need for any external sources of energy is referred to as perpetual motion. Note: A machine that operates on perpetual motion is a hypothetical …