The ball on top of a flagpole is called a 'truck'.
24
Car airbags kill 1 person for every 22 lives that they save.
80
The normal static electricty shock that zaps your finger when you touch a doorknob is usually between 10,000 and 30,000 volts!
60
A small airplane can fly backwards.
75
The life boat was patented in 1845!
29
The electric chair was invented by a dentist!
122
Attics were invented in Attica.
43
Students at MIT developed a wristband that can regulate your “thermal comfort”, which could possibly eliminate the need for central heating and cooling.
17