One 75-watt bulb gives more light than three 25-watt bulbs.
57
A coal power station puts 100 times more radiation into the air than a nuclear power plant producing the same amount of energy.
7
One gallon of used motor oil can ruin approximately one million gallons of fresh water!
71
The hair of an adult man or woman can stretch 25 percent of its length without breaking.
116
Most dust particles in your house are made from dead skin!
67
The smell of freshly cut grass is actually a plant distress call.
31
There are more atoms in one teaspoon of water than there are teaspoons of water in the Atlantic Ocean.
13
Stephen Hawking once tried to find potential time travellers by throwing a party and only sending out invitations after the party.
17