Forensic scientists can determine a person's sex, age, and race by examining a single strand of hair.
101
The weight of a carat (200 milligrams), standard unit of measurement for gemstones, is based on the weight of the carob seed.
51
The use of emoticons affects our corresponding brain areas and can actually trigger emotions.
21
Termites are being researched as a possible renewable energy source as they can produce up to 2 litres of hydrogen from ingesting a single sheet of paper, making them one of the planet’s most efficient bioreactors.
24
Hot water can freeze faster than cold water.
181
The smell of freshly cut grass is actually a plant distress call.
31