Iron weighs more after it rusts.
16
0.3% of solar energy from the Sahara is enough to power the whole of Europe.
310
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
Forensic scientists can determine a person's sex, age, and race by examining a single strand of hair.
101
Rafflesia Arnoldii is the largest flower in the world and can grow as big as an umbrella.
42
According to scientists, the color of the cup that we're drinking from can alter our perception of the actual taste of the drink.
12
German chemists made a replica of a trophy the size of one molecule.
68
Nearly 50% of the world's scientists are assigned to military projects.
71