The ball on top of a flagpole is called a 'truck'.
24
More than a billion transistors are manufactured every second.
-25
A toaster uses almost half as much energy as a full-sized oven.
33
The normal static electricty shock that zaps your finger when you touch a doorknob is usually between 10,000 and 30,000 volts!
60
To have your picture taken by the very first camera you would have had to sit still for 8 hours!
308
Students at MIT developed a wristband that can regulate your “thermal comfort”, which could possibly eliminate the need for central heating and cooling.
17
Sony researchers have developed a refrigerator that only opens when you smile.
9
The first alarm clock could only ring at 4 a.m.
120