The ball on top of a flagpole is called a 'truck'.
24
There's a Mumbai-based pizzeria that now delivers pizza by drone.
4
To have your picture taken by the very first camera you would have had to sit still for 8 hours!
308
More than a billion transistors are manufactured every second.
-25
The IRS processes more than 2 billion pieces of paper each year.
28
The average car produces a pound of pollution every 25 miles!
18
Whale oil was used in automobile transmissions as late as 1973.
56