Sony researchers have developed a refrigerator that only opens when you smile.
9
Castor oil is used as a lubricant in jet planes.
-5
The first alarm clock could only ring at 4 a.m.
120
Attics were invented in Attica.
43
There's a Mumbai-based pizzeria that now delivers pizza by drone.
4
Thomas Alva Edison patented almost 1,300 inventions in his lifetime!
144
Windmills always turn anti-clockwise. Except for the windmills in Ireland!
184
More steel in the United States is used to make bottle caps than to manufacture automobile bodies.
55