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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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Atropine, along with scopolamine and hyoscyamine, is found in the Datura stramonium plant, which gives hallucinogenic effects and is also known as locoweed.

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Colchicine is a highly poisonous alkaloid originally extracted from a type of saffron plant that is used mainly to treat gout.

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Sperm cells are so tiny that 400 to 500 million (400,000,000–500,000,000) of them fit onto 1 tsp.

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Approximately 15–25% of recognized pregnancies end in miscarriage. However, many miscarriages often occur before a woman even knows she is pregnant.

The Red-bearded Bee-eater Nyctyornis amictus is a large species of bee-eater found in the Indo-Malay The Red-bearded Bee-eater Nyctyornis amictus is a large species of bee-eater found in the Indo-Malay
A simplified diagram of the Human Ear A simplified diagram of the Human Ear
The crania, and especially the faces of KNM-ER 1813 and 1470, differ enough that some scientists inc The crania, and especially the faces of KNM-ER 1813 and 1470, differ enough that some scientists inc
The human gustatory system. The human gustatory system.
Environmental Influences on Personality Environmental Influences on Personality
Human Aneuploidies and Frequencies at Birth Human Aneuploidies and Frequencies at Birth
Video: A Human Karyotype Preparation Animation

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