Comments by "Tony Wilson" (@tonywilson4713) on "How an ingenious 400 year old drawing predicted the future" video.

  1. HEY MT: Yes I got A/C but the other significant use for swash plate pumps is in hydraulic systems for the supply pump like the systems we use in manufacturing lines for shears and punches and presses. You also see these in the hydraulic systems for things like bulldozers, diggers and back hoes as well as some farm machinery. Basically anything with hydraulic rams probable has one of these. The reason we see them in hydraulics is because they are POSITIVE DISPALCEMENT pumps which makes them suited for the high pressures needed. Loved the video as always. Since you're keen on people like this how about Hero of Alexandria. In my field of control systems and automation he is not as famous as he should be, because he is credited with the invention of closed loop control. His book Automata is where we get the job title automation engineer, which after 2,000 years was STOLEN by the IT industry a few years ago. I once enquired about a job for an automation engineer at one of our universities in Australia. My question to the professor was why did he need an automation engineer for IT. It was then I found out why I was getting a lot of odd adds in my LinkedIn. The clowns in IT has STOLEN the job title "automation engineer." When I told the professor there were already engineers using that he asked how long had we been using that. I said "About 2,000 years, ever since hero of Alexandria wrote the book Automata" Yes there were many great mathematicians and thinkers in the ancient world but Hero was the great engineer who has simply been missed by many and forgotten by too many. Among his clever stuff were the first programmable machines, the first steam turbine (Aeolipile), automatic opening and closing doors (on of my favorites) and really cute he also invented the vending machine. His feed back loop was for a water clock. Water clocks usually had to vessels with 1 dripping water into the other. They didn't keep consistent time because as they drained they lost head pressure in the upper vessel. So Hero installed a 3rd storage vessel above the vessel that dripped water. Using a float valve he kept the head pressure constant and the clock kept consistent time. All of this circa 60 A.D.
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