Whale oil was used in automobile transmissions as late as 1973.
56
The IRS processes more than 2 billion pieces of paper each year.
28
The blueprint for a floating city has just been approved by the largest port construction and design company in China. It's entirely self-sustainable, and extends underwater.
2
To have your picture taken by the very first camera you would have had to sit still for 8 hours!
308
Thomas Alva Edison patented almost 1,300 inventions in his lifetime!
144
There are only 14 blimps in the world.
69
There's an "anti-smartphone" called John's Phone which can only make and receive calls.
7