This polyethylene sheet habitat allows post-apocalyptic survival with full HEPA protection against fallout particulates. At only about $25 per envelope it gives defense against nuclear hazards in mid-radiation areas through use of a Mass-Distance-Filtration approach.
Placing the bag (and its associated air filtration system, which utilizes commercially-available cheap activated-charcoal-type filter material) in a cave, an old mine or other configuration with mass above the habitat leads to inexpensive, portable, SUSTAINABLE survival in the "bad lands".
Note: these are dangerous for children. I would suggest only building them from plans, as there is a bit of math and geometry involved. Perhaps the larges single factor in safety is airflow (as in the exchange thru it in cubic feet per minute).Fully powerable by 2 solar panels (about 200 watts, battery power at night, with advanced evaporative-type cooling, and homemade nichrome "power resistor" element heating), this allows the clever survivor to survive in a tribal setting by learning an origami-type skill that allows remaining manufactured materials to be quickly fashioned into independent, free shelters that families and small settlements can not just survive, but thrive for indefinite lengths of time.
Important: don't go into a Low Rider before they put in the "slinkies" in the air pipes. They are just 5" diameter plasticised slinky toys that eliminate the kinks in the intake pipes.
Low Riders tend to run a little hot when you are inside, so we've been looking formally at heating and cooling with the nano-watt type approach we have been taking. Here is an example of a EHC unit (a high-efficiency evaporative cooling/heating system) that is built into a desk-toy type unit. See below for complete plans for a basic EHC.
This is all of the hoses and the shelter itself in a $5 J-Pack (serious):
You carry the filter units in your hands (made of masonite) and they are very light. Hope you carry the photovoltaics is up to you.
Prototype of heater subunit for a EHC:
Notice how the copper filament holders are about 1" to act as heat sinks to the frame material. They are hot where they connect to the nicrome coils, but cool over the 1" of copper grounding wire I used. It is wired on the back side to handle a maximum of about 200-300 watts of heating (75 watts nominal).
Proposed: Bioreactors
In a world where even the dirt can kill you, we are looking at volumetric agriculture: bioreactors. Basically turning your digestive system into a electrically powered system (electricity -> light ->chlorophyll->food->you) it runs a small controlled ecosystem of phytoplanckton in sealed, food-grade buckets that can augment your everyday diet. Nutrient rich and healthy (tastes like the ocean they say) you take the dried powder and all you do is drink green protene-like shakes all day. We are anticipating that the typical person can stand maybe 40-60% of their diet from fully sealed, tiny square-footage farms of these pails.
I had a question about this so I asked the Google Search Engine. I asked "What is the half-life of fallout?" and the featured answer was: “Probably the most serious threat is cesium-137, a gamma emitter with a half-life of 30 years. It is a major source of radiation in nuclear fallout, and since it parallels potassium chemistry, it is readily taken into the blood of animals and men and may be incorporated into tissue. “
Can be used against flu, allergens and other threats:
http://www.bbc.com/news/health-42652675
All legal, and commercially-available.
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Proposed (long-term): High-Intensity UV Light Disinfection
There are places in the shelter design where you can catch the circulating air at a "bottleneck" where this (or multiple units) like it could be placed:
http://rayvio.com/wp-content/uploads/2017/05/DS04-RayVio-XP-Datasheet.pdf
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NEED MASS? Take E-Tool and fill sandbags quick; place above and to your side in shelter configuration. Shielding proportional to weight of material in sandbags.
http://www.calearth.org/shop/pdf-emergency-sandbag-shelter-book
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