And it's usually diagnosed before it causes any symptoms. Also, these men often have other illnesses which may be more important to treat than a cancer that doesn't cause symptoms. When cells in the prostate become cancerous (malignant), they clump together, forming small islands of cancer in the prostate.
Fire by Chemical Reaction. by Bob Gillis and Dino Labiste. Although this fire making technique is not primitive technology, it is worth mentioning in terms of survival skills. Fire can be produce by chemical reaction using potassium permanganate mixed with antifreeze from a car radiator or glycerin. Potassium permanganate used to be found in first aid kits and was utilized as a mild antiseptic.
C'mon Baby, Light My Fire. The ingredients needed to start a fire are traditionally illustrated in the fire triangle. The three legs of the triangle are fuel, oxygen and heat. When enough of these three factors is present, a chemical reaction occurs that results in fire. This is why you can start a fire with two sticks: The fuel is the sticks, the oxygen comes from the air and fiction provides the necessary heat. But this is far from the only circumstance in which friction starts a fire.