GHOST PHONE vs SPIRIT RADIO. Edison versus Tesla. One of history’s greatest rivalries. They would never admit it but as different as these men were, they also had many similarities. For instance, they also both dabbled in paranormal technology. Nikola Tesla was convinced he could invent a device to communicate with the spirit world. And Thomas Edison was convinced he could get there first. Let's find out why! ---- Tinfoil hat stories: https://www.youtube.com/playlist?list=PLaEJLf99gDO7TqgO2kSwsg