One barrel of petroleum holds 42 gallons.
20
Pure water (H2O) does not conduct electricity on its own.
46
Iron weighs more after it rusts.
16
Termites are being researched as a possible renewable energy source as they can produce up to 2 litres of hydrogen from ingesting a single sheet of paper, making them one of the planet’s most efficient bioreactors.
24
The left ear is more responsive to words of love and emotion whispered into it than the right.
40
One 75-watt bulb gives more light than three 25-watt bulbs.
57
4.5 pounds of sunlight strike the Earth each day.
27
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118