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Did you know?

The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.

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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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The average office desk has 400 times more bacteria on it than a toilet.

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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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Children with strabismus (crossed eyes) can be treated. They are not able to outgrow this condition on their own, but with help, it can be more easily corrected at a younger age. It is important for infants to have eye examinations as early as possible in their development and then another at age 2 years.

Cell signalling via integrins in anchoring junctions Cell signalling via integrins in anchoring junctions
Plant cell-to-cell junctions known as middle lamella Plant cell-to-cell junctions known as middle lamella
The respiratory system: nasal cavity, pharynx, larynx, trachea, bronchus, and lung with expanded vie The respiratory system: nasal cavity, pharynx, larynx, trachea, bronchus, and lung with expanded vie
Inheritance of the sickle cell trait and sickle cell anemia. Inheritance of the sickle cell trait and sickle cell anemia.
The Three Major Doshas-Basic Constitutional Types The Three Major Doshas-Basic Constitutional Types
Mixed dishes such as hamburgers and pizza are a major source of solid fats in the diets of Americans Mixed dishes such as hamburgers and pizza are a major source of solid fats in the diets of Americans
Video: Introduction to Spirometry

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