The forgotten art of analog computing.
In the 1950s, complex hydraulics problems such as surge tanks and water hammers could be simulated using an electrical analogy.
A water hammer is just an impedance mismatch in a transmission line. "It's not a big truck, it's a series of tubes." #retrocomputing #electronics

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@niconiconi i remember browsing through books written in the 1950s that used electrical analogues to talk about mechanical systems, and wondering why people didn't do that anymore.

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