A small airplane can fly backwards.
75
Sony researchers have developed a refrigerator that only opens when you smile.
9
The electric chair was invented by a dentist!
122
Car airbags kill 1 person for every 22 lives that they save.
80
Jumbo jets use 4,000 gallons of fuel to take off.
19
Attics were invented in Attica.
43
Castor oil is used as a lubricant in jet planes.
-5
