4.5 pounds of sunlight strike the Earth each day.
27
The brain case [of Neanderthals] on the average was more than 13 percent larger than that of the average of modern man
61
Airports that are at higher altitudes require a longer airstrip due to lower air density.
39
Liquid TIDE laundry detergent glows under a blacklight.
96
According to scientists, the color of the cup that we're drinking from can alter our perception of the actual taste of the drink.
12
Scientists have revived a flowering plant from a fruit stored away in permafrost by Arctic ground squirrel 32,000 years ago.
16
Optical illusions occur when what the eyes see conflicts with what the brain expects.
75
The average home creates more pollution than does the average car.
33