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How much water during the hour? | Inventions

How much water during the hour? Around 1500




around 1500. BC. BC. Egyptian court official Amenemhet, according to the inscription on his tomb, he invented a water clock or clepsydra. Seeped from it to water and to decrease its level showed how much time has elapsed. Such clocks were particularly useful priests, who had to know what time of night to the rituals and sacrifices in the temples could be done at the right time. oldest surviving water clock dates from the reign of Amenhotep III. - early 14th century BC - and found 1905th, in fragments, in the temple of Amun-Ra at Karnak.
Water clocks were in the Old World have become the standard means of measuring time, and in China have appeared in the sixth century BC. They were an everyday sight in many cities as well as in Athens, where they found the remains of town clock the created about 350 BC. BC. motion of the hour is probably driven by a float that sank until the water seeped through the hole at the bottom. On float is probably follower lever that propelled needle. Izlizanost steps as bringing down the shaft to the conclusion that the tank is filled in it every day.
Greek world had a more refined and water clocks, such as the one it made Ktesibije inventor of Alexandria about 270 BC. BC. When it was leaking water, precisely controlled tentacles, kick started all sorts of machines, so they rang the bell, moving the puppets and chirping birds - it was probably the first hour with the cuckoo, In Athens however, the Wind Tower built by the astronomer Andronicus somewhere near the beginning of the first century BC, at the top had Sundial - sundial - and inside the complex water delivered, which showed a time over the dial, while the rotary motion of the disk stars and showed annual path of the Sun through the constellations.
on what kind of impression are you leaving much water clocks tell us the old writers, who are mentioned in various contexts of their application. So Plato, writing around 360 BC. BC., the lawyers told them to pursue clepsydra ... never to take a break.
The clock even started to affect the literature. The length of the tragedy, Jada is Aristotle, you should not judge the clepsydra ... but what belongs to the action. Obviously it may view the lesson life has largely prevailed. Water is even more valuable lesson homework was in the courtroom, where the parties determined not to talk much. If the speech had to stop for a moment, for example because of access to case, output to pipe clogged with wax, and clear the blockage only if the speaker continued. In sports, in turn them, the Roman courts, determined the winner.
Later in the Islamic world were made just magnificent water unit. One particularly spruce specimen emissaries Caliph Harun al-Rashid in Baghdad brought Charlemagne - 724th to 814th -, ruler of the Holy Roman Empire. In the eleventh century, however, Arabic mechanics of Toledo made a couple of large pots with water clocks that are filled when the moon rose and emptied when they declined. They in turn were made so deliberately, having done over a hundred years without any need for tuning.




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