Any modern jet is capable of breaking the sound barrier.
34
The first alarm clock could only ring at 4 a.m.
120
The United States produces enough plastic film annually to cover the entire state of Texas.
13
Whale oil was used in automobile transmissions as late as 1973.
56
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 an internet-enabled jacket which gives you a “hug” every time a Facebook friend likes your status.
12
