When every urine was destined to be boiled
As a doctor in training, one of my tasks was to boil urine. Medical wards used to have a row of glass test-tubes to hold urine, and every morning we…
Carotenoids, Vitamin A and substances that give plants its colors
Fruits and flowers are colorful, quite unlike leaves that have shades of green. While green color comes from chlorophyll; shades of orange, yellow, and red come from carotenoids and betalains;…