the.com/tap
a tiny lever standing between civilization and the thirst of every previous century
means To tap is to strike something lightly, or it's the valve-controlled spout that lets a liquid out of a pipe, cask, or barrel on demand.
from Two threads twist together here. The 'gentle strike' sense comes from Old English tæppian, an echoic word — it sounds like the small knock it names, a cousin of similar tapping words across the Germanic family. The 'spout' sense descends from Old English tæppa, the peg or stopper plugging a cask; to 'tap' a barrel meant to fit it with that pin so the ale could be drawn. From the tavern peg we got the 'tap room,' and from the act of drawing liquid we eventually got the modern faucet that gives the essence its quiet heroism.
- Roman luxury
- Ancient Romans had bronze taps with spigot valves
- dripping cost
- One slow drip wastes thousands of gallons yearly
- hidden code
- Morse code lets taps spell words in silence
- craft beer
- Bar taps push beer with pressurized CO2 or nitrogen
- phone gesture
- The tap became touchscreens' most basic command
tap water — supplied to ~4 billion people globally through municipal systems
tap dancing — american performance art popularized in 1920s-1930s by bill robinson and others
tap root — single main root in plants like carrots and oak trees that grows vertically downward
phone tap — wiretapping technique used by law enforcement, famously exposed in fbi operations