An airplane mechanic invented Slinky while he was playing with engine parts and realized the possible secondary use for the springs.
12
There's an "anti-smartphone" called John's Phone which can only make and receive calls.
7
A car operates at maximum economy, gas-wise, at speeds between 25 and 35 miles per hour.
-4
Jumbo jets use 4,000 gallons of fuel to take off.
19
Super Nintendo and Sega Genesis had an online multiplayer mode.
-2
Scientists in the UK are creating a smartphone app that will enable users to test for STDs.
0
Any modern jet is capable of breaking the sound barrier.
34
The life boat was patented in 1845!
29