Because heat expands the metal, the Eiffel Tower always leans away from the sun.
79
Scientists are learning from the 1700-year-old Lycurgus Cup, which changes colour thanks to nano particles.
0
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
Each day is longer than the previous on by 0.00000002 seconds which is 13 seconds each century!
116
Forensic scientists can determine a person's sex, age, and race by examining a single strand of hair.
101
The banana plant cannot reproduce itself. It can be propagated only by the hand of man.
155
Every day, plants convert sunlight into energy equivalent to six times the entire power consumption of human civilization.
9
One barrel of petroleum holds 42 gallons.
20