How likely is a place like that to flood due to tides/storms? I'm guessing it's sheltered by a cove. I'm also curious how they stabilized all the shells. Were they cemented together, or just piled up and then the cement foundation was made on top. Did they break up the shells or leave them whole?
@jolyon I feel like hot water is more easily obtainable through solar hot water heaters. Evacuated tube water heaters are super efficient and relatively cheap. Generating or pumping heat should only be used when the sun is not an option.
That being said, electric water heater elements make great dump loads. I built an adjustable 30kW hot tub dump load for testing the outputs of a gasifier generator when we were testing how much extra power we could obtain by adding a turbo charger. They are especially nice because a 240V AC heating element can DC output too.
Looking at my own electrical energy usage, I easily spend the most on refrigeration of food. I'd love to find a DC option that didn't cost an arm and a leg.
@Dominic Speaking of steganography. I'm curious how many of the photos on scuttlebutt have hidden messages. When I was young I did some simple Least Significant Bit steganography on png files, but I reached a stumbling block with jpg's encoding. I'm sure its become much easier since then.
@Dominic Unfortunately you cannot do any encryption on SSB radio. Encoding is fine. I'm not familiar with bitcoin mining methodologies, are the messages between miners encrypted any way. Personally, I don't see how anyone gets anything useful done on SSB radio. Who would check their email if their login was made public? Or no HTTPS sites allow either?
It seems to me that water generation would be your next step. It looks like most of the desalinators are expensive and loud, so possible an air water generator would be more pleasant and cost effective.
Weird, after writing about this I started looking into a bitcoin mining as a dump load. I doubt you'd want to turn off dedicated asics, unless your batteries were getting low, or you knew you were going to be in incremental weather. I guess if you had a good size server with multiple gpus that were mostly idle (ie not being used by you at the time) you could spin up miners to bleed off the extra power. Sadly, doesn't bitcoin mining require an internet connection also?
@kas I have both. The electric is great because it does everything automagically. The bad part about electric pressure cookers are that they only go up to 9 psi, and aren't very big, therefore they don't work well for pressure canning. Also, they wear out over time, whereas a stove top pressure cooker has replaceable parts and shouldn't wear out unless you do something silly (like use a 10,000 btu burner). So, I usually cook with the electric pressure cooker and use the stove top one for when I'm doing huge meals or need the higher pressure settings (such as canning).
If you only want one for making dinners (that are 6 quarts or less), go with an electric. You won't regret it. I've always purchased Cuisinart CPC-600, but I would probably go with an Instapot now, as they have more functionality (yoghurt and rice maker settings).
Wind requires a dump load as if you short circuit the turbine it will run away and burn out the windings. Essentially the charge controller has a non inductive load (huge resistor at least 1.5 times the max output of the turbine) connected via a relay where it can dump extra power.
My dog used to bark at church ladies with big hats when he was a puppy. No one else.
In general I think dogs should be wary of little girls, you never know when ones going to grab you, put a bonnet on your head, and make you drink tea. </gender profiling>
@Dominic What did you have in mind? Can you interface with your existing charge controller and get this information, or were you thinking about rolling your own controller?
I've been thinking about this a lot lately, if you roll your own you could easily control it with your computer, or a raspberry pi, but I think something a little more low power like an esp8266 or other microcontroller would be more optimal as you could power down the computer and still monitor the batteries. @juul and I have been looking at the Freifunk's mppt charge controller, in hopes of converting it from lead acid battery to LiPO. It's really a rather good design, as far as I can tell, only one chip needs to be switched out for use in low power usage (such as 18650's). For higher power (>50 watt solar panels), such as yours it would need some modifications.
What parameters are you interested in having? In the past I've used a passive current sensors, along with an Atmel microcontroller to calculate power usage on a line. Battery temp should be easy to add in.
@keithalexander I was just having this conversation with my family. We are really happy with immersion blenders as they are so versatile in what container you can use, cheap (~$35), easy to clean up and don't make the messes that blenders do. They are especially great for blending hot foods on the stove. I also like cuisinarts/robocoups/food processors for chopping or making nut butters.
Full disclosure: I'm a kitchen tool addict. I do own two juicers, a vitamix blender, kitchen-aide mixer with food processor attachment, flour grinder, yada yada yada.
I usually gift an electric pressure cooker and an immersion blender to people I love because those two items make such a great combo. You can make split pea soup, stock, baby food, dog food, hummus, beans, rice, and a million other things with very little over sight. Just set it and forget it. If you heat up the water in a kettle while you are chopping your vegetables it will be ready to pour about the time you are done and it speeds up the whole process. Vegetable soup takes 12 minutes of cooking time (and usually a bit more to release pressure, but in a hurry you can just release the steam). Beans are anywhere from 25-40 minutes of cook time depending upon how you like them and if they were soaked before hand. That to me is nuts compared to hours on the stove.
So, it appears that the manufacturers don't think it's safe due to bacterial contamination and metal content, but combined with a good filter, or a system made from better components combined with a uv germicide light and you might get somewhere.
@neftaly How drinkable is the water that comes off of a dehumidifier? And how much power does it draw? I love the idea of pulling water from the air with excess power. It's been 50-65% humidity here lately, but no rain, so the soil around my plants is constantly dry, but there is some water in the air that could possibly be harvested.
What do you guys do with your extra electricity when your batteries are full? I have a 12v ARB compressor that I was thinking about filling up an air tank when everything is topped off, which I can use for running air tools. I also thought about heating water or melting metal :)
I've seen some charge controllers for wind turbines that have a dump load, but the charge controller for my batteries doesn't have any sort of connectors, so I guess I'll have to set up a relay that is turned on when the batteries reach a certain voltage.
Here are editable html invoices that have custom print css that I've used in the past to create my own invoice forms:
I made pulled pork sliders with jackfruit last night.
The whole process was super easy: Braise jackfruit in a pan with some oil, in my case I picked up a can of jackfruit in brine from Trader Joe's, which I rinsed and drained. Cook until dry and crispy, pressing on it with a wooden spatula to break apart the fibers and give it the texture similar to pulled pork. Once sufficiently cooked dump in a bbq sauce of your choice, enough to coat everything in goodness. Let it sit and soak into the jackfruit and also to allow the pieces stuck to the pan to release. I went with Trader Joe's Sriracha and Roasted Garlic, because hey, one stop shopping.
Put this on (mini) hamburger buns, top with cole-slaw and enjoy. Photos aren't necessary because it looks exactly like you'd imagine.
So I was at a Lisp meet up last night and there was a guy with almost the exact same half Thinkpad setup going on. Only he had an ultra wide HP monitor connected up with the screen rotated on it's side and propped up on a chair so that he could have a tall stream of text (looked like emacs). It reminded me of when people would go to coffee shops with iMacs under their arms. He was flying, flipping through files, alternating between split windows and one buffer. He appeared to be totally oblivious of the talk (he even had earphones in), all of which lead me to believe that it was some sort of geeky performance. At one point he stops and asks one of the most sensible yet presumptuous questions of the evening, something to the order of, "I don't understand that complaint, it's a Lisp, can't you just implement any missing functionality?" Anyways, it made me chuckle.
scuttlefuuutz (skŭt′l-fəts) expitive. 1. Yelled after the moment when you realize you've misspelled a word and it's being replicated on an append only stream.
If I crop off a small slice and then re-upload it, everything comes out fine.
On a side note, two of my photos show up as all black when I try and upload them. This has happened to me before, and I'm not sure what the remedy is as each time I try and upload them there after the hash is the same, and they continue to be black. Any suggestions?
I went down to the Albany Bulb to pick black berries and walk the dogs yesterday, nearly filled up two baskets within 15 minutes.
There is always new artwork to take in, the whole area is landfill, so people build things from the junk that they find.
Walkaway was good, if there were a pneumatic tube from California to New Zealand I'd send you a burrito and my copy.
I just finished The Three Body Problem by Liu Cixin. I'm not sure that I liked it much, found the characters kind of dry and I'm unsure if I'm going to continue on with the trilogy. Perhaps others can sway me one way or the other.
In the meantime I'm reading A Burglar's Guide to the City by Geoff Manaugh, and also going through Structures and Interpretations in Classical Mechanics, although I think I'm going to do the problemsets in clojure instead of scheme.
Here is a fennel plant in my front yard, I love the patterns it's stems and leaves make.
Of course, what is this hungry guy?
Or his even bigger friend? I believe they're both swallow tail caterpillars.
More beautiful garden patterns:
Spirulina, or blue green algae, is super easy to grow in fresh water too because it can thrive in extremely alkaline water (pH of 10 and above) that other microorganisms cannot. Therefore you can grow it without worry of competing or harmful organisms such as bacteria. Also, because of it's long spiral shape it is easy to filter out for consumption. Just bubble pump it through a fine mesh cloth. Heres a good instructable.
Yes, quite easily I believe. It grows well on sourdough bread. I once had coconut oil that got accidentally inoculated with penicillin roqueforti. It tasted just like it, the flavor didn't go away when you melted it. I ended up throwing it out because I couldn't think of a use.
Move to Oakland. My house will be empty soon and I'll need new housemates.
You should try some tighter grain hardwoods. I'm sure you could get a nicer finish.
That is a lot of gravel.
Growing up we had a 1945 Plymouth dump truck. We once filled it up with 11 tons of gravel and then proceeded to drive home. Likely well above it's gvw. The truck had a top speed of 45 mph, but that day we found it would do that speed no matter even under load. We drove onto our property and then proceeded to drive over the bridge that we had built over our creek. The rail road ties cracked and collapsed under the weight. I then spent the next two days shoveling gravel out of the back of the truck until we could get it light enough to lift out with hydraulic jacks, so that we could drive it out.
The next bridge was built from concrete.
Every few years the gravel on our road would sink down and we would have to put another layer on. We later found that leach field rocks, which look like large skipping stones, work much better as they didn't sink into the soil quite so much.
@keithalexander I have a soy milk maker, it's basically an insulated blender that has a heating element and microcontroller. Making it by hand isn't difficult using a blender and cheese clothe. Coconut milk is the easiest by far. Just pour boiling water over dried coconut flakes, blend then let settle in the fridge. The coconut flour drops to the bottom, coconut oil solidifies at the top. The liquid is your coconut milk. Three useful items for less than the cost of one.
I've had good luck with rice milk too. The key is to use already cooked rice and blend it with cold water. Or make horchata and just let rice soak with cinnamon and nutmeg over night and then blend and sift.
My favorite is to make chai flavored soy milk, just boil chai spices in water for 20 minutes on the stove and then use the water to make soy milk. I don't drink or eat much soy anymore as it has a good deal of phytoestrogens which aren't too good for men.
By the way, once you make soy milk you can then make tofu by adding a coagulant such as nigari (bitter salt or magnesium sulfate) to hot soy milk and then pressing the curds with a box lined with cheese clothe as you would do to make cheese.
A good business venture would be to go around to all of the forest land that is being attacked by boring beatles and chip up the dead trees and make electricity with one an APL gasifiers, burying the biochar, and utilizing the electricity to smelt metal, or something useful. Maybe it would be just sufficient to run your equipment and work camps.
The CAM software I have for my little 4-axis desktop mill is also running on an old XP windows machine, and I'm not too fond. I've thought about switching to EMC2/LinuxCNC and MeshCAM or PyCAM. Just wondering if anything had made some new leaps and bounds towards being reliable/usable in the 7 years since I was last making chips.
You can do carbon sequestration by creating terra preta. Basically you create low temperature charcoal, also known as biochar (gasify woody biomass, ideally using the heat and woodgas for cooking or energy production). If you have a need for a lot of power you can purchase a generator from All Power Labs and bury the char-ash from the ash take-out chamber. Full disclosure, I used to work for them.
As an alternative, I often pull out hot coals from my Biolite BaseCamp, which is just a rocket stove with a thermal electric generator (peltier chip run in reverse). I douse the coals in water and then mix them with compost or urine before adding them to the garden.
Terra preta if made right is stable for around 10k years, so you are essentially taking carbon out of the air and sequestering it into the soil. It also improves the soil fertility by making a matrix where soil microbes can live, it's also a sponge for nutrients and water. There is some indication that the polyaromatic hydrocarbons mimic a forest fire and cause plants to vigorously grow in an attempt to take advantage of the "freshly cleared soil".
I like the idea of a solar powered slug fence. You could charge up a nicad or supercapacitor during the day and pretty much have a multi-season solution.
While I've heard that copper by itself is not as much of a deterrent as people claim, a strip of copper and a strip of zinc would form a galvanic reaction that may be sufficient.
I swear there was a map that would show you all the ocean front property with a dial for setting the sea level rise.
Common misconception, that's actually the symbol for a lamborgini with one door open.
Gardens, coffee and home-brew beer. That's a pretty good coverage of my favorite things.
I'm pretty sure slugs and snails like beer as it's used to trap them.
I grew up in rural areas full of nature, so the last 20 years of living in the city there has been a constant pull to get back to the land. I've always wanted to build or be a part of an intentional community of like minded individuals, each with there own ways of contributing. Now that I own a house in the city, I often want to also own a place out in the country to get away to. My thought has been to have sister communities that one could bounce between depending upon your needs. During the summer one could be out on the farm tending to your orchards and crops, and during the winter one could be in town doing software and networking. Of course some would want to do the opposite, be out in nature during the winter, holed up in front of the fireplace, hunting and dealing with the elements.
Not sure how one would coordinate resources like this. I mean, my house is a huge asset, so are my tools and other resources. I'd hate to have them destroyed by others who didn't bring anything to the table. Also, if I had a community in a more rural setting, I'm not sure I'd have much of a draw to be here in the city. The only thing that keeps me here is the interesting people. At times, the chaos and violent types make the friendlies seem few and far between.
The guy wires on all four corners leads me to believe that it gets pretty windy up there.
I believe it is a hermit crab, which is a type of crab that utilizes discarded shells as homes.
This is awesome. Whenever I've traveled with my bike, there is that uncomfortable period when my bike is still disassembled in the box.
Do they have a gifting station where you can leave your old box for someone that is flying out? I'd love to be able to just bike to the airport, box up my bike and check it in from there.
@Dominic I have a book called the Millenium Project: Colonizing the Galaxy in Eight Easy Steps that talks about building huge rail guns on floating cities on the equator. The mass drivers are tall towers, possibly not as tall as what you describe, and used for launching heavy payloads at speeds sufficient to escape earth's gravity. Humans, and other payloads that can't take the g's of the railgun get launched using laser propelled vehicles.
I'll have to find the book, I don't see it readily on my book shelf, there is some cool tech, like using electricity to make your own coral cement structures in salt water.
That's what I expected, an alternator can output quite a bit more than 12v. Still, I've burned up quite a few LED's running high current through them, and everything I googled suggested a regulator when used with a car battery. They probably dereg them a bit with the internal current limiting resistors so that they can handle some abuse.
Good to know.
Are you using a 12 V regulator (LM7812) or buck converter prior to your LED strips, or is it fine with the 14.4V of the LiPO4 when fully charged?