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Singing horses
Harrison, John (1693-1776)
An English horologist and instrument maker.

He made the first chronometers that were accurate enough to allow the precise determination of longitude at sea, and so permit reliable and safe navigation over long distances.

This entry is located in the following unit: Science and Technology (page 1)
(the first newsletter of a series that was formerly presented to subscribers by the Sr. Scribe, a.k.a. John Robertson)
(the second newsletter of a series that was formerly presented to subscribers by the Sr. Scribe, a.k.a. John Robertson)
(the third newsletter of a series that was formerly presented to subscribers by the Sr. Scribe, a.k.a. John Robertson)
(the fourth newsletter of a series that was formerly presented to subscribers by the Sr. Scribe, a.k.a. John Robertson)
(the fifth newsletter of a series that was formerly presented to subscribers by the Sr. Scribe, a.k.a. John Robertson)
(the sixth newsletter of a series that was formerly presented to subscribers by the Sr. Scribe, a.k.a. John Robertson)
(the seventh newsletter of a series that was formerly presented to subscribers by the Sr. Scribe, a.k.a. John Robertson)
(the eighth newsletter of a series that was formerly presented to subscribers by the Sr. Scribe, a.k.a. John Robertson)
(the ninth newsletter of a series that was formerly presented to subscribers by the Sr. Scribe, a.k.a. John Robertson)
(the tenth newsletter of a series that was formerly presented to subscribers by the Sr. Scribe, a.k.a. John Robertson)
(the eleventh newsletter of a series that was formerly presented to subscribers by the Sr. Scribe, a.k.a. John Robertson)
(the twelfth newsletter of a series that was formerly presented to subscribers by the Sr. Scribe, a.k.a. John Robertson)
(the thirteenth newsletter of a series that was formerly presented to subscribers by the Sr. Scribe, a.k.a. John Robertson)
(the fourteenth newsletter of a series that was formerly presented to subscribers by the Sr. Scribe, a.k.a. John Robertson)
Word Entries containing the term: “john
Arnold, John (1736-1799) & repeater
An English horologist. He first made his name as the maker of a very small half-quarter repeater for King George III, but later became known for his chronometers.

A "repeater" is a clock or watch that can be made to repeat its latest chime when someone presses a spring or it is also defined as a type of timepiece that has the ability, controlled by a button or a pull-cord, to repeat the last chime-hour struck.

This entry is located in the following unit: Science and Technology (page 1)