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 most expensive material on the planet is antimatter - worth $62.5 trillion per gram.
18
No matter how cold it gets, gasoline will not freeze.
107
Rafflesia Arnoldii is the largest flower in the world and can grow as big as an umbrella.
42