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Water clocks, known as a clepsydra in Ancient Greece, were widespread for centuries, and the philosopher Plato is credited with first adapting one into an alarm in the 5th Century BC. He trapped air inside a vessel which water was flowing into; as the water increased so did the pressure, eventually resulting in a loud kettle-like whistle. Water clocks were also some of the earliest automated village bells, notes Champion. They used large basins of water which when drained would lead to the striking of a bell – one 12th Century chronicle records such a water reservoir being used to put out a fire.
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Более 70 объектов инфраструктуры оказались повреждены после ракетного удара Вооруженных сил Украины (ВСУ) по Брянску. Об этом сообщает РИА Новости со ссылкой на официального представителя Следственного комитета (СК) России Светлану Петренко.
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