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| Free clocks |
Clocks that estimate the position of the tide: high tide or low tide. Tide clocks make practical and novel gifts for your friends or family who live near the sea!
How does a tide clock work?
Tides are caused mainly by the moons gravitational pull on the ocean. The time it takes the moon to reappear at the same place in the sky each day is 24 hours and 50 minutes. Most areas in the world have two high tides and two low tides a day, so the tide clock has been specially designed to rotate twice each lunar day (every 12 hours and 25 minutes) giving you a quick and easy indication of high and low water. The quartz tide clock will always stay synchronized with the moon.
There are other influences on sea levels that effect exact tide times and the user should take these into account:
Strong on / off shore winds
Changing volume of river flows
Atmospheric pressure
The suns own gravitational pull, when lined up with the moon
Noah Childrens wall clock (CCC30 - EC)
![]() £17.02 Add to Cart |
Kitchen clock + timer (61592 - EC)
![]() £16.16 Add to Cart |
Casablanca wall clock
![]() £21.27 Add to Cart |