To have your picture taken by the very first camera you would have had to sit still for 8 hours!
308
The life boat was patented in 1845!
29
The ball on top of a flagpole is called a 'truck'.
24
There's an "anti-smartphone" called John's Phone which can only make and receive calls.
7
An airplane mechanic invented Slinky while he was playing with engine parts and realized the possible secondary use for the springs.
12
Thomas Alva Edison patented almost 1,300 inventions in his lifetime!
144
The first alarm clock could only ring at 4 a.m.
120