English clockmaker John Harrison revolutionized long distance seafaring in the 18th century, solving the problem of calculating longitude at sea and devising tools that helped sailors navigate with ...

Imaginary lines -- Sea before time -- Adrift in a clockwork universe -- Time in a bottle -- Powder of sympathy -- Prize -- Cogmaker's journal -- Grasshopper goes to sea -- Hands on Heaven's clock -- ...

The equator is a clear and accurate line around Earth that makes measuring latitude a precise science, but when it came to figuring out how to do that with longitude, British sailors were at a loss.

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A few days ago, I posted an update on the Redwood Coast Tsunami Work Group’s Facebook page (https://www.facebook.com/RCTWG/). A magnitude 5.5 earthquake occurred on ...

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The practice of maintaining time has changed dramatically from the days when local time was determined by the position of the sun. Local time is unique but frequently unfeasible in a world where ...

THERE is a practical answer to the problem put by Mr. Latimer Clark (NATURE, vol. xviii. p. 40). As a matter of fact the day begins, or rather the day is first named at the 180° meridian east or west ...