L7 Flashcards
These two early clocks had limitations such as no sun and freezing water.
Sundials, and Water Clocks
This clock was able to be used indoors at night.
Candle Clock (Needle in a candle)
Archimedes made this mechanical clock. A bird would emerge every hour and show the pass of time.
Abul-Abbas Clock
Archimedes made this mechanical clock. A bird would emerge every hour and show the pass of time.
Abul-Abbas Clock
This clock told time by observing the movement of planets.
Su Song Clock
This monk introduced the clock in order for other monks to wake up in time to pray.
Richard of Wallingford
This person and his son, made the Astrarium, which was an extremely complex mechanical clock.
Giovanni de’Dondi
This was John Harrison’s profession.
Carpenter
John Harrison tried to compete in this event. This event was a competition for timepieces that had the accuracy of losing no less than 1s/day.
The Longitude Prize
This is John Harrison’s first clock that adapted to the environment around it by changing temperature and humidity so it would not lose any time.
The H1
This was the kind of timepiece John Harrison’s H4’s was.
Watch
This person confirmed the insane accuracy of the H4 and was scared that if used, it would go into the wrong hands.
Captain James Cook
This timepiece made in 1770 was the most accurate timepiece on earth until 1968.
The H5
This person rediscovered Harrison’s clocks after they were buried in Greenwich London.
Lt Rupert Gould
This 11 million dollar wrist watch was of the highest quality but had very bad accuracy.
Patek Philippe
