Yes, enjoying a sunny day on the beach is fun. However, going out without proper skin protection is putting yourself at risk of skin diseases, one of which is the dreaded skin cancer.Like most parts of our body, skin can develop cancer. Cancer is a result of an uncontrolled cell growth in one part of the body.Unlike normal cells which are programmed to divide, grow, and die at a certain time, cancer cells lack the internal machinery to control growth and as a result cause severe damage to normal cells that will be outnumbered along the process in a certain biological locality. Some cells even detach from their point of origin and travel to other parts of the body to start a new colony of cancer cells.Skin cancers are either melanoma or non-melanoma cancers. Non-melanomas are cancers which arise from skin cells other than melanocyte cells. Melanomas are cancerous melanocyte cells that produce melanin, a pigment that gives the skin its characteristic color.The sun is one of the key enemies of the skin. Light to moderate sun exposure is beneficial, as it helps the skin synthesize vitamin D (cholecalciferol), but excessive or lengthy exposure, and right, you’ve guessed it, […]
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A safe tree climber is the best kind of tree climber there is. He doesn’t disturb the tree in any way, from its roots to the top of its crown. She respects what grows on and around the tree. She knows that when the climbing is done, the tree should be as pristine as it was before you even got up there.To protect the tree, you must inspect it before you climb. Only then can a climber decide that a tree is suitable for a climb and strong enough to support a climber. There are four zones of tree inspection to satisfy (primarily based on A Climber’s Guide to Tree Inspection of Tree Climbers International). The first is the Wide Angle View Zone. Inspect the tree from a distance of about 30-70 feet, depending on how large it is. You want to see the tree as an isolated stucture in its own space.Large cracks or splits down the trunk or along a large branch are more readily seen from a distance, as are weakened or fractured branches that appear to need just the slightest nudge before they plummet to the ground. […]
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The first time I heard about ceramic knives, I wasn’t impressed. Truthfully, I was a bit concerned over the questionable intellect of knife manufacturers. You see, my house is full of ceramic statues and ashtrays. When they fall to the floor as they periodically do, they shatter into many, many smaller pieces. I thought the same would be true with ceramic knives. I was grateful to learn that I was very wrong. They are not the same. So I had some learning to do.Ceramic knives are made out of zirconium oxide. They aren’t metallic whatsoever and have a flat, off-white to bright white color. Their composition is much harder than steel. Actually, they’re second only to diamonds, which are the hardest mineral of all. Isn’t that something?There is another class of ceramic knives that have black blades. These blades start out as white zirconium oxide. With an additional firing process called sintering, they are converted into black zirconium carbide. This process gives the blades the advantage of being even tougher than before. Now they are the strongest knives out there.There are definite advantages of ceramic […]
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