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The discussion is indeed theoretical because it seems impractical - however possible - to me. First of all, there is a big difference between paper (solid) and water (liquid). In the liquid, the absorbed light energy is distributed by molecular movement rather quickly and you will not necessarily get such a hot spot as on a piece of paper. The fraction of ...


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We can use multiple mirror combination setup with magnifying glass too so that more amount of heat can be provided to water to be boiled .


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The danger is not only suffocation due to lack of oxygen, but also poisoning due to too much carbon dioxide in the air. Normal air has 21% oxygen; humans will safely survive down to ~15%. Maybe 10% oxygen is barely survivable for a few hours. Mountaineers might have an advantage here, they regularly survive Everest, which has ⅓ of the oxygen at sea level ...


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TL;DR: Death trap? No. Should you be cautious? At least as cautious as you would be with normal tinder. Think of it this way: Pile of loose jute twine, seem dangerous? No. People who use it for arts & crafts probably don't even realize its fire potential. Pile of loose paracord. Dangerous? No. Tinder can sit out without worry. Paracord can sit out ...


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Even the “regular” paracord would be set ablaze if you put it close to a fire / heat source :) It’s a nylon / polyester after all… In my opinion, such gimmick paracords are not more dangerous than a normal one. Unless that tinder is a strand of black powder fuse :) UPDATE I reckon that extra strand is some kind of waxed cotton or something. If that is the ...


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