Sony researchers have developed a refrigerator that only opens when you smile.
9
The cigarette lighter was invented before the match.
210
Any modern jet is capable of breaking the sound barrier.
34
There's an "anti-smartphone" called John's Phone which can only make and receive calls.
7
Attics were invented in Attica.
43
The normal static electricty shock that zaps your finger when you touch a doorknob is usually between 10,000 and 30,000 volts!
60
The first alarm clock could only ring at 4 a.m.
120