Check out Countdown Central:https://www.youtube.com/channel/UChf19X-xjHOQAsZx5GbEk3g<br />See the Greek Robot in action:https://www.youtube.com/watch?v=xyQIo9iS_z0<br />TWIITER:http://www.twitter.com/top5unknowns<br />GPLUS:https://google.com/+Top5Unknowns/<br />SUBSCRIBE HERE:https://www.youtube.com/user/Top5Unknowns?sub_confirmation=1<br /><br />Batteries found in Baghdad to ancient Greek Robots here are 5 futuristic technologies used by ancient civilizations
