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Theodosius of Bithynia was said to have invented the sundial. The first recording was 239 BC. You can read this by the edge of the shadow. The sundial uses the position of the sun to tell time. Theres is more than one type of sundial.
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Jost Burgi invented the minute hand in 1577. His part of the invention was for the clock. The minute hand tells the minute of the time. Late on came the hour hand which tells the hour.
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Jost Burgi invented the minute hand for Tycho Brahe. Trycho Brahe was a stargazer who needed the clock.
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Levi Hutchins invented another example of an alarm clock in 1757. He only made if for himself. His clock only ran at 4:00 a.m. to wake him up for his job.
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John Harwood was british watch repairer. His inention was the wristwatch in 1923.
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Applewatch was created by apple to be a smartwatch. it was announced on September 9, 2014 by Tim Cook. The watch helps wth health and can be used with other Applc products. The price ranges between $349-$17,000 USD.
