The Atwood Machine
The Atwood machine (or Atwood's machine) was invented in 1784 by Rev. George Atwood as a laboratory experiment to verify the mechanical laws of uniformly accelerated motion. Atwood's machine is a common classroom demonstration used to illustrate principles of physics, specifically mechanics.
The Century Dictionary and Cyclopedia (New York, NY: The Century Co., 1889)
Courtesy the private collection of Roy Winkelman