The average adult has over 8 lbs. of skin, and it is the largest organ in your body. Your skin serves many purposes, but one of its major functions is to protect the body from infectious organisms, such as parasites, bacteria or viruses, that cause disease.hough normal flora bacteria are not usually harmful, they can cause infections if they enter your body through a wound. Most of these organisms are considered healthy bacteria because they prevent very harmful bacteria, called pathogens, from growing on your skin.
Besides radium, there are several other methods of making glow in the dark watch dials. There are various non-radioactive phosphor compounds that will glow in the dark after being exposed to light. Some modern compounds can glow for 10 to 15 hours after a relatively short exposures to bright light. Tritium, like radium, is radioactive, but it is much safer.
The basic technology behind the Indiglo watch is called electroluminescence. Electroluminescence is the conversion of electricity directly into light. This is not how an incandescent bulb works. In an incandescent bulb, the electricity produces heat, and the heat produces light.Electroluminescence is much more efficient because it converts the electricity directly to light. The most common example of electroluminescence that we see on a regular basis is a neon light.n a neon light, high voltage energizes the electrons in neon atoms, and when the electrons de-energize themselves, they emit photons. In an Indiglo watch, a very thin panel uses high voltage to energize phosphor atoms that produce light.