4.5 pounds of sunlight strike the Earth each day.
27
Optical illusions occur when what the eyes see conflicts with what the brain expects.
75
The only letter not appearing on the Periodic Table is the letter "J".
180
MIT has developed a camera that captures the speed of light at a trillion frames per second.
20
Neanderthal man had a brain capacity 100cc larger than modern man's.
50
Rafflesia Arnoldii is the largest flower in the world and can grow as big as an umbrella.
42