The first alarm clock could only ring at 4 a.m.
120
Sony researchers have developed a refrigerator that only opens when you smile.
9
In the early 1960's, Porsche commercially manufactured farm tractors.
24
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
Surgeons who grew up playing video games make 37 percent fewer mistakes.
250
Car airbags kill 1 person for every 22 lives that they save.
80
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