First, you’ll probably want to experiment with more than one variable withdrawal rate tool. I like the cfiresim.com web calculator best. But other calculators exist too, including a simpler variable withdrawal option at firecalc.com and Bob Herlien’s variable withdrawal rate spreadsheet (available here). And we probably all get better insights into the flexibility we need to show if we run lots of simulations using different approaches.
Here are just a few choice gems from The Prepper Journal's 11 Ways A Condom Can Save Your Life: starting fires (they're great at protecting tinder from moisture), hunting for food (sexiest slingshot ever!), and transporting up to two liters of water (yes, rule 34 applies; no, we won't provide the link). They also make serviceable stand-ins for rubber gloves and can be used to protect the muzzle of your other essential survival tool (killing it right now).
What if you could turn virtually any water bottle into an effective water filter? The Lifestraw Universal kit comes with a 2-stage filter, two different sized caps and a leak-proof lid. Compatible with most Nalgene, Camelbak, Klean Kanteen, Hydro Flask, Under Armour, Gatorade and other standard bottles, the replaceable microbiological filter removes 99.999999 percent of waterborne bacteria and 99.999 percent of waterborne protozoan parasites. If that wasn’t enough, a replaceable activated carbon capsule removes a number of chemicals and improves the taste of the water. All materials are FDA approved, made from food grade silicon, Polysulfone and ABS plastic. The kit includes a wide mouth cap, standard mouth cap, sport mouthpiece, standard mouth piece, 2-stage filter, and carry bag.
When looking to add to the arsenal of knowledge you have about wilderness survival tactics, you definitely want to have knowledge of First Aid and CPR. First Aid knowledge will serve you well if you are alone or with others and there is an injury you need to tend too, while CPR will prove an ideal skill set in the event that someone that is lost with you or in a survival situation requires live saving resuscitation. See our piece on the best first aid kits to help you be prepared for anything.
Civilians such as forestry workers, surveyors, or bush pilots, who work in remote locations or in regions with extreme climate conditions may also be equipped with survival kits. Disaster supplies are also kept on hand by those who live in areas prone to earthquakes or other natural disasters. For the average citizen to practice disaster preparedness, some towns will have survival stores to keep survival supplies in stock.
Experts worry most about the grid’s nervous system: 2,000 extra-high voltage transformers. They’re 200- and 300-ton behemoths, individually engineered to meet specific power demands, and on average, they’re 40 years old. Notwithstanding the fact that 85 percent of transformers are imported, the U.S. Department of Energy says it takes between 5 and 16 months to replace a single one. According to the U.S. Federal Energy Regulatory Committee, an attack that destroyed nine of the 2,000 transformers would “cause a protracted nationwide blackout.” There’s no national cache of spare transformers.
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