Relay-Based Floating Point Square Root Calculator

Like this and want to help support my future projects - send bitcoins to 1MEeRmWAViTKsU3ty8dxCrY36Bi635j5k9 This is a machine I built to calculate square roots. It uses only electromechanical relays like the early computers of the 1930s. There are 480 of them, each with a light that you can watch on the front panel. No micro controllers in sight! More at http://simonwinder.com/projects/relay-calculating-engine/