Diamonds can be shattered with a hammer.
-104
At room temperature, the average air molecule travels at the speed of a rifle bullet.
55
MIT has developed a camera that captures the speed of light at a trillion frames per second.
20
4.5 pounds of sunlight strike the Earth each day.
27
Scientists have revived a flowering plant from a fruit stored away in permafrost by Arctic ground squirrel 32,000 years ago.
16
Iron weighs more after it rusts.
68
One barrel of petroleum holds 42 gallons.
20
