A rope with a loop at the end used to catch cattle and horses, especially by cowboys in the American West.
From Spanish 'lazo' meaning 'loop' or 'knot,' borrowed during the colonial period when Spanish vaquero culture influenced American ranching.
The lasso is physically a perfect example of physics in action—the spinning creates centripetal force that keeps the loop open, and the noose tightens on contact through the same principles that make it work for fishing nets.
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