the.com/turnstile

A revolving bouncer that lets you pass only one stubborn quarter-spin at a time.

means A mechanical gate of horizontal arms that rotates to admit people one at a time, often after a fare or ticket.

from A plain English compound that does exactly what it says: "turn" plus "stile." A stile was originally a set of steps or a barrier letting walkers cross a fence or wall while keeping livestock penned in — the word is old English, related to the root for "climb" or "mount." Add "turn" and you get a stile that spins instead of one you step over: the same idea of letting a person through while blocking everything else, now mounted on a pivot.

first patent
Patented in 1888 for Coney Island crowds
original job
Invented to control cattle, not commuters
fare evasion
NYC loses over 100 million yearly to jumpers
counting clicks
Built to tally heads, not just block them
name meaning
Literally a stile that turns
for instance

new york subway turnstile — iconic rotating gate in nyc subway system, installed since 1953, prevents fare evasion with each swipe

band turnstile — american heavy metal band from brooklyn formed in 2010, known for albums 'pressure to succeed' and 'gutter'

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