tachometers

"A windmill transmits motion to the ground level via a vertical driveshaft, which operates a water pump."

"The restaurant has a section with tables revolving slowly to offer diners a panoramic view of the city. "

"The car's velocity changed from 30 mph east to 40 mph west, demonstrating a change in direction. "

"The pilot checked the dashboard to see if the plane's fuel level was low. "

"The washing machine uses electricity to spin and agitate the clothes, producing clean laundry. "

"She glanced at her reflection as she passed the mirror."

"The children were running to catch the school bus. "

"The mechanic fixed the broken bicycle chain. "

"The American and French Revolutions brought significant changes to governance and society. "

"We measured the temperature with a thermometer.   You should measure the angle with a spirit level."

"The guard blew his whistle to indicate imminent departure."

"My father bought a new automobile for his business. "