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Did you know?

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.

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If all the neurons in the human body were lined up, they would stretch more than 600 miles.

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Only 12 hours after an egg cell is fertilized by a sperm cell, the egg cell starts to divide. As it continues to divide, it moves along the fallopian tube toward the uterus at about 1 inch per day.

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About 3.2 billion people, nearly half the world population, are at risk for malaria. In 2015, there are about 214 million malaria cases and an estimated 438,000 malaria deaths.

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Eat fiber! A diet high in fiber can help lower cholesterol levels by as much as 10%.

A very high-resolution texture of the Moon, including a normal map A very high-resolution texture of the Moon, including a normal map
Anthropologist Andrea Wiley (left) investigates the effects of high-altitude living on reproductive Anthropologist Andrea Wiley (left) investigates the effects of high-altitude living on reproductive
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Graduating High School Graduating High School
Alpine tundra. Low-growing, hardy plants at a high altitude in Washington’s Cascade range. Alpine tundra. Low-growing, hardy plants at a high altitude in Washington’s Cascade range.
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