11/28/2022 0 Comments Sound siphon serial numbers![]() Furthermore, some (notably Encyclopedia Britannica) argue that theoretically, "a siphon will work in a vacuum". They argue that theoretically, internal molecular cohesion is sufficient to pull the liquid up the intake leg of the siphon to the crest. "The siphons were, apparently, flame-projectors, either hand-pumps or reservoirs worked by mechanical force-pumps".Īmong some physicists there is some dispute as to what causes the siphon to lift liquid from the upper reservoir to the crest of the siphon. "Some apparatus called a 'siphon' (σιφων) was used". It is not clear whether these were actual siphons or merely pumps that used air pressure to project the Greek fire. Usually the mixture would be stored in heated, pressurized barrels and projected through the tube by some sort of pump while the operators were sheltered behind large iron shields. The siphon was first used as a weapon by the Byzantine Navy, and the most common method of deployment was to emit Greek fire, a formula of burning oil, through a large bronze tube onto enemy ships. Even earlier Egyptian reliefs from 1500 BC depict siphons used to extract liquids from large storage jars. His student, Hero of Alexandria, wrote extensively about siphons in the treatise, Pneumatica. It is probable that Ctesibius was the discoverer of the principle of the siphon. ![]() 9 Explanation using Bernoulli's equation. Sound siphon serial numbers code#6 Sample building code regulations regarding back siphonage. ![]()
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