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The calories found in one piece of cherry cheesecake could light a 60-watt light bulb for 1.5 hours.
Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.
There used to be a metric calendar, as well as metric clocks. The metric calendar, or "French Republican Calendar" divided the year into 12 months, but each month was divided into three 10-day weeks. Each day had 10 decimal hours. Each hour had 100 decimal minutes. Due to lack of popularity, the metric clocks and calendars were ended in 1795, three years after they had been first marketed.
Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.
The first-known contraceptive was crocodile dung, used in Egypt in 2000 BC. Condoms were also reportedly used, made of animal bladders or intestines.