Black History-A Tech game changer

Granville T Woods was such a prolific inventor, he is often called the black Thomas Edison. Woods holds more than 50 patents for such inventions as the egg incubator and a steam boiler furnace. But his most significant invention, the synchronous multiplex railway telegraph (patented in 1887), allowed railway stations to communicate with moving trains. Because dispatchers were better able to locate trains, rail accidents were significantly reduced.