One of the main concerns for people that wear gas masks in their workplace in order to stay protected, is whether or not a gas mask is able to protect…
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One of the most harmful types of energy for the humans Is radiation. When we breathe it and live with it in very low levels, it is not expected to…
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The nuclear fallout is one of the most feared threats on the earth by the majority of people living on it. When we talk about nuclear wars or attacks, we…
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The Oxy Acetylene welding process is the most common of a group of similar welding processes called Oxy Fuel Welding or OFW. With the particular welding processes, the welder has…