as [Manuel] did recently with his relay computer. This post is a walk through some circuits that used those mechanical solutions before the invention of the more electronic and less mechanical ...

"BCC Research Study Forecasts a 9.2% CAGR, with Market Growth from $17.2 Billion in 2024 to $26.8 Billion by 2029, Driven by Increasing Demand for Electrical Safety and Grid Reliability.