The first alarm clock could only ring at 4 a.m.
120
Kleenex tissues were originally used as filters in gas masks.
46
There's a Mumbai-based pizzeria that now delivers pizza by drone.
4
Energy is being wasted if a toaster is left plugged in after use.
21
To have your picture taken by the very first camera you would have had to sit still for 8 hours!
308
Whale oil was used in automobile transmissions as late as 1973.
56
Jumbo jets use 4,000 gallons of fuel to take off.
19
Thomas Alva Edison patented almost 1,300 inventions in his lifetime!
144