The bark of an older redwood tree is fireproof.
65
The brain case [of Neanderthals] on the average was more than 13 percent larger than that of the average of modern man
61
Diamonds can be shattered with a hammer.
-104
The earth is approx. 6,588,000,000,000,000,000 tons.
175
Balsa wood is classified as a hard wood!
41
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
Approximately 70 percent of the earth is covered by water. Only 1 percent of this water is drinkable.
65
Only 12,000 years ago there was a species closely related to modern humans called Homo floresiensis that had been living on an Indonesian Island. They used fire and rather advanced tools, yet were only about 3 feet tall and weighed around 25kg.
15