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So, I need to drop 12v from my moped to 8v to power this LED light.
I was thinking diodes in series but that would take a lot of diodes and they would get really hot.
Then I thought of an LM7808, but that can only handle 1A, the light will take 10-12 watts at 8v which is 1.25 to 1.5A, so that wont work unless I run 2 in parallel, but I don't know if you can do that.
Somebody said I could use a 7808 with a 2n3055 transistor, but I have no clue how to design a circuit to utilize this.
Here is a link to the light:
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Good day, fellows.
I am a 30 yr old "construction" worker. I've recently hurt my back, I have no formal education, and live in Canada. I've had a minor back problem for awhile (since I was 18) and I can only see my back problems getting worse. Ive got a wealth of knowledge in doing many trades, I'm basically a "master-of-none". I'm currently working in a warehouse cleaning toxic chemicals out of oil barrels and am off for the day till the doctor gives me the OK.
My question is this, I need help on what my options are. I feel really helpless. I know I'm looking for pity, but I really just want ideas. Recently I've lost my independence (living with friends...) and was planning on moving in Q1 of the new year. I believe I can keep working but I'm sick of the heavy manual labor. Is it really hard to get into schooling? I've recently tried and failed at completing my gr 12 ( for a paramedic course) due to the travel and a few other factors. I'm curious if you can help me or suggest ways that I can take a quick course or maybe a less back intensive trade that would help me become more independent.
>pic related; my reason for trying.
also I really enjoy fixing things. like soldering, electronics, computers, building things. I've always be a tactile person.
I just want to get a direction on how to gain a better future for these things.
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I do not know where else to post this question, but I thought /diy/ would be most suitable, seeing as you all know building materials.
I am translating a book from Faroese (the language of the Faroe Islands) to English, that my great-grandfather wrote in the 1930's. It is about traditional Faroese architecture and building styles. Practically a (then) modern take on old viking and settler buildings.
Okay, so my question is this. What do you call the metallic crumpled roofing, that many modern houses have? I am currently translating a pretty funny statement on ergonomics, beauty in buildings, and the influx of "modern grey blocks, in which people live in". In a joking manner, my great-grandfather called it "rukkujarn", which literally translates to "crumple-tin". I will definitely leave the literal translation in, but I feel like I should put in a footnote, clarifying what he meant.
I do realize that cumple-tin is also used as insulation of sorts, but in this book, crumple-tin mainly refers to the butt-ugly roofs of various modern buildings.
Also, seeing as this would probably be the only board (other than /tg/) interested in traditional, ergonomic and economically sound architecture, would you like me to post the book, whenever I have finished translating it? I think it is pretty funny, and it gives a lot of insight.
The book mainly focuses on how "quantity instead of quality" is bullshit when it comes to houses, that grey blocks (that can barely be called houses) are ruining the "look" of towns and cities, and how people should pull themselves together, and build visually appealing houses that are also ergonomically and economically sound.
I would like to get an English word for crumpled metal roofing. Also, would you guys be interested in reading a book about a modern take on Nordic architecture?
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So here's a story; I have a broken samsung galaxy SI. However, when I say broken, I mean to say that the only thing not working is the functional buttons (the home/back/etc. tabs at the bottom).
So, it still turns on, and works, however, you can never back space. Apparently there is a tiny filament that connects them to the rest of the device, and it was damaged and would be needlessly expensive to fix. So, I thought to myself... I have a phone, with 512mb of ram, and a 1 GHz Cortex-A8. Why, I have a raspberry pi!
So, here's what I wonder; Is there anyway I can completely get rid of the mobile operating system, and insert my own? Maybe hook it up to a screen via micro-hdmi to hdmi. What technical challenges are in my way?