the.com/tachometer
A gauge that measures how close you are to blowing up your engine, for fun.
means An instrument that measures the rotational speed of a shaft or engine, usually displayed in revolutions per minute.
from Built from Greek roots: 'tachos' meaning speed, and 'metron' meaning measure — the same 'tacho-' that shows up in tachycardia (a racing heart). The word emerged in the 19th century alongside the broader family of '-meter' instruments that industrial and scientific life was busy inventing names for, from speedometers to thermometers.
- measures
- engine revolutions per minute, not speed
- redline
- the number it begs you not to hit
- name origin
- greek tachos, meaning speed
- manual cars
- tells you exactly when to shift gears