/sci/ - Science & Math

Also, how to heat my cabin properly during cold nights?

you mean an autonomous power system?

A few solar panels is a decent idea. A mechanical charger would also be necessary for cloudy days.

A steam engine is a bad idea, unless you know how to control the charge so your battery doesn't explode.

>>4410607
DARPA have developed this amazing new process in the last six months. It's pretty high tech but with some ingenuity and know how I'm pretty sure someone could figure out a homebrew version. Basically what you do, is you go out into the forest where the cabin is situated, and you cut down a tree. You need to cut the tree into smaller sections for efficiency of transport, then you take it it home to the cabin. Then, you build a small enclosure from stones or metal, somewhere in the cabin, make sure the bottom isn't wooden, that's important. Then, you place the wood pieces in the enclosure. Now, this is the tricky part, so you may want to write it down. You take the wood, and you burn it. Amazingly, this apparently produces some form of reaction where heat is released to the surrounding atmosphere, thus warming nearby objects. It's a revolution. Some of the more out-there scientists are talking about using the process to heat water and using that as some kind of energy source, but I doubt that will lead anywhere.

micro water turbine

for heating and water heating just buy a wood furnace or if it gets hot often you can use solar collectors to heat the water (this way you don't have to use the furnace at all during the summer and you can accumulate wood).

Water: you either have it or you don't. If there is a source used by other houses nearby you can get a tube to get water.
Otherwise it will be very unpractical and pricey (if you empty your rain tank and you have to pay someone to get you a water tank).

Solar panels may not be enough for electricity. If it's never cloudy you could rely on those and on a backup diesel generator, but if it gets cloudy often you'd have to burn too much diesel.
Get a cyclette or something and use it as exercise to recharge the batteries.

>>4410625
good answer to that troll

>>4410625
That isn't safe for a wooden cabin at all, that's why I'm not even planning to do this. Just one small spark, and the cabin is gone. Also, it wouldn't be safe to sleep in it neither as there could be some small wooden particles which haven't finished burning yet on the floor.

>>4410607
I would insulate the cabin well. Materials are rather cheap, assuming it's a small cabin. 2.5" extruded polystyrene screwed to the framing covered with plywood or drywall, will cost around $1.50 per square foot of wall.

Will save you a lot of wood/whatever you use for heating in the long run.

>>4410628
There's a small water stream near the cabin. How to ensure the drinking safety of this water?

>>4410639
Look around for bears and other predators.

If there's none you can take some water in a bucket.

In b4 OP becomes the next unabomber.

>>4410641
But what if someone pisses or shits in this water, without me knowing (say, mountain tourists, etc)? What about dead insects and random junk in it?

How to ensure that this water is safe to drink? How to clean it properly?

Also, is it possible to attain full food independence in a forest?

>>4410606
On some apocalypse show on the discovery/history/something, they used wood embers to power a generator. Look that shit up, they apparently do it in iceland.

Are you seriosuly going to do it? why? I am curious, it sounds pretty cool.

>>4410645
Boiling water, cooling steam

>>4410641
remember to check if bucket hasn't any sharp edges. If it hasn't - make some - so you can defend with your bucket-weapon from predators around stream.

>>4410649
To be able to dedicate more time to the things I enjoy.

>>4410650
Will this clean ANY water to safe & drinkable levels? Or is there some limit to the water pollution?

In 1971, he moved to a remote cabin without electricity or running water, in Lincoln, Montana, where he lived as a recluse while learning survival skills in an attempt to become self-sufficient.[3] He decided to start a bombing campaign after watching the wilderness around his home being destroyed by development.[3] From 1978 to 1995, Kaczynski sent 16 bombs to targets including universities and airlines, killing three people and injuring 23.


The Unabomber was the target of one of the Federal Bureau of Investigation's (FBI) most costly investigations. Before Kaczynski's identity was known, the FBI used the title "UNABOM" to refer to his case, which resulted in the media calling him the Unabomber.

>>4410661

Kaczynski graduated from Harvard University in 1962 and subsequently enrolled at the University of Michigan, where he earned a PhD in mathematics.[12] Kaczynski's specialty was a branch of complex analysis known as geometric function theory. His professors at Michigan were impressed with his intellect and drive. "He was an unusual person. He was not like the other graduate students", said Peter Duren, one of Kaczynski's math professors at Michigan. "He was much more focused about his work. He had a drive to discover mathematical truth."

>>4410645
Bring hydrogen peroxide. Add 10 drops to a liter of water. Take some old jeans and tie the bottom of one of the legs and then put some cold charcoal in the bottom. Pour your water through the charcoal/pants filter you just created and what comes out is super clear filtered water free of bacteria.

Which foods can be stored in the long term, and can fulfill my daily nutrient needs?

>>4410650
>>4410655
Boiling water kills some shit living in it but DOES NOT make it safe to drink.

How much should one drink? 2 liters? Just buy a ton of 5L bottles and be fine for a month

>>4410663
You should boil the filtered water afterwards, too.

http://health.ninemsn.com.au/whatsgoodforyou/theshow/694031/does-boiling-water-make-it-safe-to-drink

>>4410650
It also makes water mostly clean, so you don't have to drink mud.

Ask the guy on the picture.

>>4410667
I usually drink 1.5 - 1.7 liter a day. If I would store it all, I assume various microorganisms would develop in the water, as it wouldn't be completely clean.

>>4410666
Bring seeds, plant a garden. Learn how to trap, and if you can bring a rifle to hunt deer. Learn how to dry and salt meat, that shit lasts forever.

>>4410665
If the contamination is biological, boiling is all you need. If the contamination is heavy-metal, then you need to distill the steam.

There are probably other forms of contamination that need more careful distillation...

but in the woods, 99% of your problems are from bacteria, feces, and decay in the pond. Boiling works great.

>>4410606
And why the fuck would you want to do this?
You suicidal? Plan ok killing alot of innocent people?

Only crazies live in isolated cabins nowadays.

>>4410681
>And why the fuck would you want to do this?
You suicidal? Plan ok killing alot of innocent people?

I wonder where these assumptions come from.

>>4410681

I would try OP's challenge for like 2 months if I had the drive

>>4410681
long term isolation (not talking to another person face to face, not using spoken language) will blunt your mental abilities

Also, which edible plants are the easiest to grow, and produce returns rather fast?

One of such plants is green onion, and I know how to grow it. However, I can't eat this all day long (already tried, started feeling sick in a few days).

>>4410702
I feel far lonelier when living in a society. I can't relate to most (if not all) people, and I never really had any friendships which lasted longer than a month, on a level which is superior to doing common activities together on the playground (rolling cars, digging holes, etc).

Being by my own in a calm place makes me feel far more fulfilled. When I was a high school students, I spent my breaks locked in a bathroom and reading, for example.

make sure to bring some basics from stores first, just in case things dont turn out as expected

>>4410606
diesel generator
solar cells

>>4410725
>diesel generator

Requires diesel.

Why not to use a mechanical pedal generator instead?

>>4410729
because you don't need much energy, buy a big tank and you're set for 10 years.

>>4410745
What do you mean by a big tank? How big? How many liters would a diesel generator drain per day, implying my energy requirements (see the OP)?

>>4410748
All your shit: ~70 Watt
a diesel generator that powers some kind of UPS at 1/4 load will need 17 Liters per month.

>>4410761
That's a lot. One could rely on solar panels, pedal generators and steam generator.

>>4410761
70W? bullshit.

>>4410770
laptop ~ 30W
modem ~ 20W
LED lamp ~10W
Radio ~ 10W

>>4410779
laptops regularly use more than 30W. and if you are only going to use 1 light, why on earth will you want a 10W LED one? you'll go blind after the first month of night activities.

>>4410780
I just fucking guessed the numbers, also my laptop only consumes 26W at normal use.

>>4410779
>I just fucking guessed the numbers
>I just fucking guessed
>fucking guessed
>guessed
>guess

YOU WAT. i should report you to your university.

>I hope there's another unabomber.

>>>/diy/161822

Related thread.

Could try one of those algae biodiesel kits.

People who live in the country dig wells to get their drinking water. In some cases nature itself filters the water best, so if you could dig a well and add some filter to your pipes, boiling may be optional. It would also save you some energy which you have to use to boil the water.

But btw, if you plan on doing this until old age, at some point you're not going to be able to work for your food and you'll most probably fall prey to wild animals.

your welcome
http://biolite.myshopify.com/

This subject brings me to a dream of completely being independent and relying on yourself and nature around you.

Small wind turbines and solar panels could leave you completely energy independent. As long as the energy is used for practical life necessities. Plumbing, water heating, stove, maybe some lighting.

Living off the land with advanced aeroponics and green houses also being generated with power from the wind turbines when needed, would leave you completely independent of the entire grid itself.

As long as you choose a location of land that has great resources, plenty of trees, CLEAN spring water and rivers, rich soil for the plants and food growth. Hunting some game for protein would also be required; deer, fish, etc. would be more than enough.

The only problems I could foresee is maintaining your infrastructure. Damage to the wind turbines and solar panels would need to be repaired, as well as breakdowns of your water heater, electrical wiring throughout the home, would not be easy fixes. Namely the resources around you might not provide the fixes for these devices. Metals and wiring is not readily made available or easy to reproduce for a single individual living in the wild.

A small community with the same basic ideas and concepts above may be the best option of maintaining the infrastructure and keeping productivity of food and life necessities.

Just a little dream I desire to free myself from the dependency of the "grid". It would also keep you well protected from any breakdowns of modern society, through war, disease, etc.

>>4410804

Wow. That thing looks cool. It's a little small to be practical though. You can't get larger chunks of wood in there. How am I supposed to charge up my lasgun on woodchips? It'd be tedious to get wood to fit in there. The stove part should be resizeable. And sealable within the context of a modular indoor stove system for heat.

>>4410606
>Laptop

You need a generator. Preferably something wood powered, of course.

This wouldn't need to be too complex- type "sterling engine" into youtube for a rudimentary AC generator.

>A 3G modem

Again, a generator. Depending on how far out you are though, 3G won't be an option. Consider Satellite internet.

>A small battery radio
Get a Dynamo powered radio

>A small table lamp
Get a flashlight.

Pedal generators aren't able to give more than a few tens of watts, you would be pedalling for hours a day to make it work. Burn wood.

>>4410804
Man, if I ever intended to leave my room, the classrooms and the library for more than 2 hours at a time, I'd totally buy that.

Heliostat + stirling engine.

Passive solar heater as well, there's a couple different (extremely cheap) methods to do this. With these things and a small cabin you should be able to generate far more than enough electricity. Combine this with aeroponics and hunting/trapping and you're totally set.

>>4410835
>Pedal generators aren't able to give more than a few tens of watts,

False. A pedal generator will make around 75 Watts/Hour

>>4410845
False. A well oiled, well maintained, top of the line pedal generator with a lead-acid to Li-ion charging system will make around 75 watts an hour. Anything OP can get will make around 40 watts an hour, probably

source: I lived in a forest for 6 weeks

>>4410851
>>4410845

Watts per hour doesn't make sense.

>>4410854
Ah/h, pardon

get a gasoline generator.

...and gasoline

Should I use wood or wood + thin metal to make my house?

>>4410883

https://en.wikipedia.org/wiki/Flashing_%28weatherproofing%29

Use fire proof bricks/tile, double walled pipe, and flashing to put a stove in a wooden house. (If that's what you're asking).

>>4410883
long term probably both. metal on the outside. seal it up reaaaalllly well so there are no leaks. sides, top and bottom. insulation then wood walls. maybe you could get a couple of those biolites and stick them on the pipe of your stove. you should also get a solar array and some sort of battery system. for water purification you should get a solar distiller http://www.i4at.org/surv/sstill.htm . i would also suggest that you inoculate near by rotting wind falls with edible/medicinal mushrooms reishi,chaga , lions mane, shitaki, oyster the list goes on... do some research look up "lets grow mushrooms!"
you should also have a green house and some sort of dehydrating set up(unless your actually rich and just want to order stuff in)
i remember seeing a design for a pop can green house vent system that used pop cans painted black to move air and had compost piles to heat in the winter.
if you REALLY wanted to go all out you could have a fish(usually tilapia) fulled hydroponic garden ...
anyways... gl

>>4410779
laptops are around 60w and netbooks with Atom do around 22w
>>4410798
This.

Also, check out wood gasifier. Build your self few wind generators, get deep cycle marine batteries and power inverter which can also charge the batteries. Get rocket stove, no sparks, safe, ultra efficient, cheap as fuck.
For passive heating and anything sun related go here
www.builditsolar.com

>>4410780
>and if you are only going to use 1 light, why on earth will you want a 10W LED one? you'll go blind after the first month of night activities.

A 10W LED light is as bright as a 60W incandescent. Why would you go blind?

>>4410981
but it's 60w focused

I have 1 w flashlight and it's way to bright to read books with.

>>4410883
http://www.tumbleweedhouses.com/houses/tarleton/

>>4410988
Fi bottle with bleach water. Aim led throigh boytle. Refracted light

OP must be too comfortable with his suburban lifestyle to want to live in a cabin without modern utilities. He's totally naive about being "independent" from society.

>>4411042

Dat useless shitpost!

What is the least costly (in terms of energy) light source to use at night? I need something which would make the room bright enough to be able to walk, read, write, etc.

>>4411168
LED, candles get expensive, and the rest is just too expensive. Get LED lamp that uses batteries, charge them during the day with solar or hand crank.

bump

shhhh I just bought 70kw of solar panels for 35c/w