Atwood's machine

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noun Physics.

a device consisting of two unequal masses connected by a string passed over a pulley, used to illustrate the laws of motion.

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Origin of Atwood's machine

Named after George Atwood (1746–1807), English mathematician who invented it

The billionaire philanthropist tastes the product of a machine that processes human sewage into drinking water and electricity.
Bill Gates Drinks Sewer Water|Jack Holmes, The Daily Beast Video|January 7, 2015|DAILY BEAST
They were the machine gun bullets coming from the ambush when my company got hit.
The Story Behind Lee Marvin’s Liberty Valance Smile|Robert Ward|January 3, 2015|DAILY BEAST
“A guy drives up in a 2008 Mercedes, brand new,” Harry S. Connelly Jr. says in the video, according to the Times.
Are Police Stealing People’s Property?|Joan Blades, Matt Kibbe|January 2, 2015|DAILY BEAST
“Personal hotspots can get speeds of up to 60 Mb/s down, whereas hotel Wi-Fi can be as slow as 1.5 Mb/s,” Sesar said.
How ‘Ethical’ Hotel Chain Marriott Gouges Guests in the Name of Wi-Fi Security|Kyle Chayka|December 31, 2014|DAILY BEAST

“If BMW is ‘the ultimate driving machine,’ your Anthem is the ultimate differentiator,” writes Hogshead.
Can Self-Help Books Really Make a New You?|Lizzie Crocker|December 29, 2014|DAILY BEAST
The controlling leaders being out of gear the machine did not run smoothly: there was nothing but friction and tension.
Napoleon's Marshals|R. P. Dunn-Pattison
Ajoutez cecy, s'il vous plaist, la grande difficult qu'il y a de tirer d'eux les mots mesmes qu'ils ont.
The Jesuit Relations and Allied Documents, Vol. II: Acadia, 1612-1614|Various
A little black girl sat on the floor, and with her hands worked the treadle of the machine.
The Awakening and Selected Short Stories|Kate Chopin
The sewing-machine made a resounding clatter in the room; it was of a ponderous, by-gone make.
The Awakening and Selected Short Stories|Kate Chopin
The machine penetrated everywhere, thrusting aside with its gigantic arm the feeble efforts of handicraft.
The Unsolved Riddle of Social Justice|Stephen Leacock