The weight of a carat (200 milligrams), standard unit of measurement for gemstones, is based on the weight of the carob seed.
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Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
4.5 pounds of sunlight strike the Earth each day.
27
The smell of freshly cut grass is actually a plant distress call.
31
The use of emoticons affects our corresponding brain areas and can actually trigger emotions.
21
According to studies, men change their minds two to three times more often than women.
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Balsa wood is classified as a hard wood!
41
Marie Curie, the Nobel prize winning scientist who discovered radium, died of radiation poisoning.
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