German chemists made a replica of a trophy the size of one molecule.
68
Pure water (H2O) does not conduct electricity on its own.
46
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
Most liquid laundry detergents are alive with living organisms that help to break down stains!
88
Airports that are at higher altitudes require a longer airstrip due to lower air density.
39
Forensic scientists can determine a person's sex, age, and race by examining a single strand of hair.
101