Aluminum used to be more valuable than gold!
84
Brass doorknobs automatically disinfect themselves in about 8 hours.
18
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
The most expensive material on the planet is antimatter - worth $62.5 trillion per gram.
18
Out of all the senses, smell is most closely linked to memory.
146
Hot water can freeze faster than cold water.
181
The force of a suction cup is calculated using F=AP.
15
Most dust particles in your house are made from dead skin!
67