A single speck of dust is half way in size between a subatomic particle and the Earth.
15
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
One ragweed plant can release as many as one billion grains of pollen!
51
Neanderthal man had a brain capacity 100cc larger than modern man's.
50
A ball of glass will bounce higher than a ball made of rubber.
73
The brain case [of Neanderthals] on the average was more than 13 percent larger than that of the average of modern man
61
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
German chemists made a replica of a trophy the size of one molecule.
68