First Clock
Mechanical Clocks
Electric Clocks
100

Who invented the first clock?

Ctesibius

100

Who invented the first mechanical clock? and when?

Unknown, 14th century

100

Who invented the first electric clock?

Alexander Bain

200

When was the first clock created?

275 BC

200

How were they different from today's mechanical clocks?

They were not portable, but instead large installation in public places.

200

when was the first electric clock invented?

1840

300

How did the first clock work?

Funneled water that spined a propellor.

300

How does a mechanical clock work?

A wind-up spring holding potential energy is turned turning into kinetic energy which spins the gears for the clock.

300

How does a mechanical clock work?

Dirven by a spring and pendulum and electric impulses to create dials to control hands.