The hair of an adult man or woman can stretch 25 percent of its length without breaking.
116
Sound at the right vibration can bore holes through a solid object.
134
Scientists have revived a flowering plant from a fruit stored away in permafrost by Arctic ground squirrel 32,000 years ago.
16
A cesium atom in an atomic clock beats over nine billion times a second.
43
The banana plant cannot reproduce itself. It can be propagated only by the hand of man.
155
A cubic yard of air weighs about 2 pounds at sea level.
31
Pumice is the only rock that floats on water.
14
Diamonds can be shattered with a hammer.
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