In AD 1364 giovanni de dondi the first person to create. Time to clock hours. But his clock is large. The arrows indicate the position of the sun, moon and five planets, the sun, with
.peter henlein German Schlosser is the author. The world's first watch in early 1500, but the clock is still large and heavy, not unlike the much later in the year1500 peter henlein has created a watch that is small and lightweight, weighs only 1 kg
and in the year1641 Galileo observed a swinging lamp. He found the swing anniversary of lamps each take the same always. No matter how much or how little to sway the Galileo then assigned to a son named vincenzio galilei.Called the clock pendulum (pendulum), which can be a fairly accurate
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