German chemists made a replica of a trophy the size of one molecule.
68
Scientists are learning from the 1700-year-old Lycurgus Cup, which changes colour thanks to nano particles.
0
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
The hair of an adult man or woman can stretch 25 percent of its length without breaking.
116
4.5 pounds of sunlight strike the Earth each day.
27
The left ear is more responsive to words of love and emotion whispered into it than the right.
40
The only letter not appearing on the Periodic Table is the letter "J".
180