Aluminum used to be more valuable than gold!
84
One third of the electricity produced on earth is used to power electric light bulbs!
75
Scientists in Germany have developed a candy that doesn't cause cavities.
11
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
The bark of an older redwood tree is fireproof.
65
The smell of freshly cut grass is actually a plant distress call.
31
Columbia University has developed an artificial tree that passively soaks up carbon dioxide from the air using "leaves" that are 1,000 times more efficient than true leaves that use photosynthesis.
15