Aluminum used to be more valuable than gold!
84
The sun is 330,330 times larger than the earth.
75
Scientists have revived a flowering plant from a fruit stored away in permafrost by Arctic ground squirrel 32,000 years ago.
16
Sound at the right vibration can bore holes through a solid object.
134
Sound travels about 4 times faster in water than in air.
408
Brass doorknobs automatically disinfect themselves in about 8 hours.
18
One cubic foot of gold weighs more than 1,200 pounds!
78