Why was Nikola Tesla, the greatest inventor of our age, forgotten by history? There's a lot more to this story than you think. Tesla's Death Ray: A Murder Declassified premieres Tuesday 10p on Discovery. http://bit.ly/2EjnSrC | Discovery

ARCHIMEDES DEATH RAY AKA FRESNEL LENS‼️ - 🪞 Archimedes’ Death (or Heat) Ray is a device that Archimedes is purported to have used mirrors to reflect the sun to a single focal point. In order to burn attacking Roman ships during, and around the Siege of Syracuse (c. 214–212 BC). It does not appear in the surviving works of Archimedes, but is described by historical accounts many years after the siege. The 2nd century AD author Lucian wrote that during the Siege of Syracuse, Archimedes destroyed