Henry Ford produced the model T only in black because the black paint available at the time was the fastest to dry.
33
Energy is being wasted if a toaster is left plugged in after use.
21
It would take twenty new mid-size cars to generate the same amount of pollution that a mid-size 1960's car did.
20
There's an "anti-smartphone" called John's Phone which can only make and receive calls.
7
The normal static electricty shock that zaps your finger when you touch a doorknob is usually between 10,000 and 30,000 volts!
60