Kleenex tissues were originally used as filters in gas masks.
46
Castor oil is used as a lubricant in jet planes.
-5
Mico headphones read your brainwaves and select music based on your state of mind.
7
A car operates at maximum economy, gas-wise, at speeds between 25 and 35 miles per hour.
-4
Windmills always turn anti-clockwise. Except for the windmills in Ireland!
184
An airplane mechanic invented Slinky while he was playing with engine parts and realized the possible secondary use for the springs.
12
Sony researchers have developed a refrigerator that only opens when you smile.
9
Any modern jet is capable of breaking the sound barrier.
34