The ball on top of a flagpole is called a 'truck'.
24
Scientists in the UK are creating a smartphone app that will enable users to test for STDs.
0
Car airbags kill 1 person for every 22 lives that they save.
80
Whale oil was used in automobile transmissions as late as 1973.
56
Thomas Alva Edison patented almost 1,300 inventions in his lifetime!
144
Castor oil is used as a lubricant in jet planes.
-5
A small airplane can fly backwards.
75
Originally, BMW was an airplane engine manufacturer.
69