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 answer is both yes and no. First let's take a look a the 'no' part of the answer. Radioactive decay may produce photons, which are light, but the photons are not in the visible portion of the spectrum. So no... radioactive elements do not glow in any color you can see.On the other hand, there are radioactive elements that impart energy to nearby phosphorescent or fluorescent materials and thus appear to glow.ctinium also glows. Actinium is a radioactive metals that emits a pale blue light in a darkened room. Nuclear reactions may produce a glow. A classic example is the blue glow associated with a nuclear reactor. The blue light is called Cherenkov radiation or Cerenkov radiation or sometimes the Cherenkov Effect.