Scientists have revived a flowering plant from a fruit stored away in permafrost by Arctic ground squirrel 32,000 years ago.
16
One barrel of petroleum holds 42 gallons.
20
Iron weighs more after it rusts.
68
Diamonds can be shattered with a hammer.
-104
Oak trees produce 2,200 acorns in a season, but each acorn only has a 1 in 10,000 chance of becoming an oak tree.
304
The only letter not appearing on the Periodic Table is the letter "J".
180
One 75-watt bulb gives more light than three 25-watt bulbs.
57