The Cook and Wheatstone Telegraph

The cook and wheatstone telegraph was a way to transmit written messages across wires with the use of five different magnetic pointer needles. Early implementations of the telegraph would wide be associated with rail and railway stations. It was famously used in the apprehension of murderer john Towell in 18 forty four. Rob: Have you ever heard of this tawish story about how John Towell killed his wife by poisoning her with hydrogen cyanide? The answer is no, i think it was new year's day, 18 forty five.