If the optic nerve of an amphibian is severed, the animal can grow a new nerve within weeks. A mammal does not have this ability.
Tanzanite is a semi-precious but expensive gemstone found only in Tanzania, Africa. It is tri-coloured. As the gemstone is turned, its colour changes from deep blue to purple to yellowish green. When heat is applied to the stone, it becomes uniformly blue.
An injection can leave you with a painful swelling at the injection site.Some people make the mistake of applying heat to the swelling.Applying heat will only increase the swelling. Application of ice, on the other hand, will give you rapid relief.
Every horse has a pair of small air pouche sat the base of its skull. First discovered in 1756, nobody had a convincing explanation of what they were for all this time. Now Canadian scientists have discovered that the air sacs cool the horse’s brain. If not for the sacs, the horse’s brain could get permanently damaged by the heat generated when the animal gallops at full speed.
Paul Ehrlich was a German bacteriologist and immunologist, who received the Nobel Prize for medicine in 1908. Once as a young student, Paul was deeply absorbed in his work at the Breslau University laboratory,when his professor came in, accompanied by a stranger. The professor pointed to Ehrlich and said, “That’s little Ehrlich, who is very good at staining but will never pass his examination.” ‘Little’ Ehrlich not only passed his examination but went on to join the same stranger in a work of great significance. The stranger was none other than Robert Koch,the man who discovered the organism that causes tuberculosis.