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.
Did you know?
Tobacco depletes the body of vitamins A, C, and E, which can result in any of the following: dry hair, dry skin, dry eyes, poor growth, night blindness, abscesses, insomnia, fatigue, reproductive system problems, sinusitis, pneumonia, frequent respiratory problems, skin disorders, weight loss, rickets, osteomalacia, nervousness, muscle spasms, leg cramps, extremity numbness, bone malformations, decayed teeth, difficulty in walking, irritability, restlessness, profuse sweating, increased uric acid (gout), joint damage, damaged red blood cells, destruction of nerves, infertility, miscarriage, and many types of cancer.
Audiometry. The child in this photograph is undergoing a hearing test with an audiologist.
Hong Kong is a strange situation. A British colony since 1842, it was handed back to China in 1997 a
a) Radioimmunosorbent test (RIST); (b) radioallergosorbent test (RAST).
Positive ring precipitin test.
Anatomy of the Spinal Cord: Cross Section Through the Spinal Cord in the Cervical Region
Urine Test for Pregnancy