An airplane mechanic invented Slinky while he was playing with engine parts and realized the possible secondary use for the springs.
12
If a car is travelling at 55 miles per hour it will travel 56 feet before the driver can shift his foot from the accelerator to the brake.
25
To have your picture taken by the very first camera you would have had to sit still for 8 hours!
308
Mico headphones read your brainwaves and select music based on your state of mind.
7
Technically speaking, crystal glass is actually a Liquid that flows very slowly.
43
Scientists in China have built a prototype high-speed maglev train that is theoretically capable of reaching speeds of up to 1,800 mph (2,900 km/h).
1
There's a Mumbai-based pizzeria that now delivers pizza by drone.
4
There's an "anti-smartphone" called John's Phone which can only make and receive calls.
7