There are robotic turrets guarding the border of South Korea.
A McDonnell Douglas F-15 once shot down a satellite.
An iPhone 4 actually costs $178, retails for $560
The sound barrier was probably first broken not by Chuck Yeager, but by a Luftwaffe pilot in 1945.
The Japanese developed an underwater aircraft carrier in WWII.
The first picture taken from space was captured via an ex-Nazi ballistic missile.
Cost to decorate a Christmas tree with electric lights in 1899: $300.
The first alarm clock could only ring at 4 a.m.
Time magazine named the computer its “Man of the Year” in 1982.