The first alarm clock could only ring at 4 a.m.
120
Students at MIT developed a wristband that can regulate your “thermal comfort”, which could possibly eliminate the need for central heating and cooling.
17
There's an "anti-smartphone" called John's Phone which can only make and receive calls.
7
Whale oil was used in automobile transmissions as late as 1973.
56
Energy is being wasted if a toaster is left plugged in after use.
21
More steel in the United States is used to make bottle caps than to manufacture automobile bodies.
55
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