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File: ThermiteReaction.jpg (3 MB, 2095x2322) Image search: [iqdb] [SauceNao] [Google]
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What's the best method of making a smoke bomb? (Non toxic smoke)
22 replies and 3 images submitted. Click here to view.
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Probably rocket candy mixed for slow burning, search youtube, lots of info there.
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Sugar and KNO3 or something i dunno, google it and dont use your mom's good saucepans.
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Assuming you have at least a very basic understanding of pyrotechnics,

1 part hard pitch
4 parts antimony trisulfide
2 1/2 parts sulfur
4 1/2 parts ammonium chloride

for ignition material, use 1 part powdered charcoal to 4 parts sodium nitrate. Layer it under the smoke producing mixture.

File: orders.png (103 KB, 976x1018) Image search: [iqdb] [SauceNao] [Google]
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Ok guys, im getting ready to live the nomad life.

How bad did i fuck up.

Im planning to build a small trailer i can haul with my bike or my car.
Any tips for insulation?
35 replies and 4 images submitted. Click here to view.
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Country? Have fun getting tags on that "trailer". Where do you plan on charging those batteries? Overall I give you a 0/10 if this isn't a troll post and 2.7/10 if it is.
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>>958094
Oh this again.
Well to sum it up: its going to suck balls. Preparing food, going to the toilet, sleeping, cleaning yourself, having a social life, storing stuff; its all going to suck. Why are you doing this? Just apologize to your parents and they may let you move back in. Seriously though, you do not want this.
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>>958103
Wut? Its just my base. I dont need to charge batteries yet as i live in a house. I will worry about that later.

>>958106
Well at the very least its an experiment. Im doing this because i believe technology has advanced enough to the point where i can make all of those tedious tasks manageable.

Even if this doesnt work out, well, i only spent a little more than $500. Ill take it farther if it works out like i planned.

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I'm 29 and buying a house for the first time. I never wanted the responsibility of taking care of a property myself, but now I'm at the age where it's just the right choice.

I know absolutely nothing about taking care of houses. My main question is what kinds of common maintenance tasks do I need to perform? Outside is partially brick, partially hardy plank siding, inside has hardwood floors and granite countertops, fireplace is NG, the gutters are pretty freaking high up (like 20 feet) and already dirty. Is it pretty safe to clean gutters at that height...
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meant "hardiplank"
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>>957777
Have a home inspection done (you are doing that, right?) and it should point out any obvious problems or troublespots assuming your inspector has half a brain.

If the water heater and HVAC units check out, keep them. The water heater could be a concern from a failure/leak standpoint, but get the HVAC stuff serviced if you're worried about it breaking down. Do remember to replace filters on the furnaces.

Probably your biggest enemy is going to be water. You've already noted the gutters. Personally...
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clean, a lot

-change the furnace filter(s) regularly during the time it's being used
-get the ducts cleaned to remove old dirt
-if there is a dryer, once you get a dryer, vacuum the lint out the dryer/vent pipe
-if there are drapes/curtains/anything that might . might want to have them cleaned

-I'd highly advise checking out the insulation situation asasap; that's one of the best investments you can make

-make sure you know where all the shutoff valves are for when the **** hits the fan

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Hello guys, do any one of you know how to make eco paints for flags?

its for a protest aggainst oil and fracking
43 replies and 2 images submitted. Click here to view.
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>>957496
Just use regular paint and tell people it's eco-paint.
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>>957496
>paints
>flags

don't use paint, cut out and sew.

if you want to use paint i suggest you use water based paint. not oil based paint.

also

>protesting
you realise you are just wasting everyones time and taxpayer money. you should have protested to your representative. if you did then sorry but tough.
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>>957498
yes but we wanted to make our own paint, a friend gave me a recipe but it takes almost 50 eggs and the majority of us are vegans so we dont want to use the eggs..

We have been working "with" our governement, we have made a petition and yes :/

Is there a way to find a stud under sheet rock without a stud finder or baging 8+ holes into the wall
34 replies and 5 images submitted. Click here to view.
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Not a home improvement person by any means but if I remember right you should be able to get a decent estimate by tapping lightly on the wall with a hammer or something. The sound over a stud should be noticeably different than hollow sheet rock. Not foolproof but a good help.
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No, get a stud finder.
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Theres a couple ways, but studfinders are like $5.

Get a strong magnet, once you find where the drywall screws are, you'll know thats where they're screwed into the stud. Hopefully the contractor wasn't as cheap as you and put a screw every foot.

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Was looking to get off some scuff marks/scratches of this table. I stored it outside with a blanket on and somehow it got all these marks on it, I posted the before and after pic. I already tried general cleaner and it didn't do a whole lot, is there a good product I can use?
20 replies and 4 images submitted. Click here to view.
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>>957061
>a good product I can use?
A belt sander?
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>>957062
Pretty much this. Take better care of your shit op.
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I take good care of my stuff, my mom put it outside and I have no idea what she did with it

Is there really no other way I can fix it? Maybe there's a wood cleaner or something like that

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I'm trying to change the n64 game on the cartridge and I'm wondering how to. Has anyone else done this?
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File: n64.jpg (39 KB, 592x443) Image search: [iqdb] [SauceNao] [Google]
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never done it for the N64 but for other systems, all i did was unsolder the ROM, then put in an IC socket so i could plug in the same ROM or any other of the same size.
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So I need to take out the circuit board and unsold error the rom on it
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>>956994
That's the gist of it, yes. You gotta make sure that the new rom is compatible with the donor board, so to speak. If you're gonna burn the same game on the new IC then you've nothing to worry about.

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Hey, i got this starbucks bottle, but i want to change the paper inside.
Anybody here managed to open and do it?
17 replies and 4 images submitted. Click here to view.
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>>956784
fuck you for wasting 4 mb of my bandwidth for a shitty picture of you stupid cup.
also what kind of fucked up outlet do you have?
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>>956784
Those are literally designed to be opened. You are a dimbfuck for not being able to figure it out.
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>>956820
not all of them are. break it. glue it back together.

File: snap-00017.png (155 KB, 490x360) Image search: [iqdb] [SauceNao] [Google]
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I want to make a small reflecting telescope. But I don't want to grind the reflector. It will be tiny, maybe 4" / ~10cm diameter.

Is there a cheapass source for these things?

I'd need a primary and secondary reflector for a 4"x70" telescope. I don't care if it's window glass, neither surface nor temperature stability will have to be very good. It's more a proof of concept and a toy.

I've considered just getting a toy telescope and cannibalizing its mirrors. But I haven't found one cheap enough.
28 replies and 4 images submitted. Click here to view.
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>>954976
Check the cloudynights.com classifieds such things aren't uncommon there, eBay may have something too, plenty of cheap mirrors and such from China.
Though desu grinding such a small mirror, especially at a long focal length, will take very little time as it will be a pretty flat mirror, and there will be little need to parabolize it. Even basic window glass of some thickness would be fine.
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>>954976
I got a 4.5" reflector with a secondary for $20 on eBay.
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>>955194
New or used?

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Does anyone here make their own jerky?

I learned how to make it on a trip to America and got the idea to start making it and sell it in the UK. The only issue I could see is the meat I was told to use is so expensive I'd struggle to break even. I was told to use eye of round, is there a cheaper cut that will result in the same quality jerky?

Over here a 50g bag costs about £2.30 in stores, how close could I get to that price with homemade?
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>>948076
You can really use just about any cut of meat you want. With fatter cuts, you'll have to trim more fat off, though. Top round and bottom round work well. Experiment with whatever you can find. Even if it isn't optimal, it should still be edible.

I don't know about the UK, but in the US random cuts of meat go on sale pretty often.

I just hope the quality of UK beef is better than the quality of UK sausages~
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>>948076
>Over here a 50g bag costs about £2.30 in stores, how close could I get to that price with homemade?

I can't do the math right now, but buy some meat, weigh it, and then weigh the resulting jerky. Frankly, in my experience, homemade jerky isn't much cheaper than buying store bought jerky.
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>>948076
You can't just make jerky and sell it. In order to sell foodstuffs in the UK there are significant regulatory hurdles negotiate. You can't easily just do it in your home kitchen. Do you have substantial financial backing for this venture?

Allegedly these are supposed to be bullet proof (not that that would stop brain trauma but still)

I have been interestimg in making a helmet like pic related, and then extending what I learn to make an entire suit. Apparently they use 3a Kevlar.

Where can I find more on this topic? I can only find kids making batman molds on youtube and It's pretty frustrating.
75 replies and 7 images submitted. Click here to view.
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>>947717
*interested

Not sure how that happened.
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Bulletproof is a generic bullshit term. Do you intend to get shot with a BB gun or a .44 magnum? Because there is a fucking difference.
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>>947721
It doesn't really have to be high calibre safe. Im thinking 9x19 or .40. Definitely not interested in airshit, but if the methods are similar I'll look at it.

File: ceiling mold 01.png (1 MB, 1013x767) Image search: [iqdb] [SauceNao] [Google]
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I have these spots on my ceiling. I think they're wet spots, but I'm not sure of what. They've been there for years, and when I first noticed them, I heard an irritating persistent bumping sound, that stopped when I tapped the ceiling with a metal water bottle.

Turns out we had rats, and they have since been killed with rat traps, but I still have these spots on my ceiling. Have I been imbibing moldy/poisonous rat germs in my body?

I don't think it's fluid from a carcus since the mouse traps that killed them were not laid above my room....
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23 replies and 4 images submitted. Click here to view.
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if it really does have dead rat juice soaked through, no scrubbing is going to do it

it shouldn't be that difficult to cut it out and make a patch to fit
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>>957642
Should I try to get as much of my ceiling replaced as possible? Does dead rat juice have poisonous fumes and has it likely been extending its radius beyond what I can see from below?
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>>957646
if there isn't any other visible damage, I don't think that would be necessary

no, I slightly doubt it...
does it smell? is it actually wet? if there was a rotting rat, I would think you'd know it for sure....dead mice stink

if it's a water leak, that would be something to be worried about

cut it out and find out what made the stain

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I can do this cardboard ?
Thank you .
22 replies and 6 images submitted. Click here to view.
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>>957420
Like with sono tubes? Yes, but you need to water proof them so they last longer than a day.

https://www.youtube.com/watch?v=T4RudTL458Y
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>>957426
I do not have any sonotube but I have lot of boxes . CAn I wax box and waterproof ?
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>>957450
You sure can try. But you also must reinforce box. Otherwise it will collapse.

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MythBusters is having its series finale in about two hours, followed by a reunion special (?). All day on Discovery they've been doing a marathon of the show, and tomorrow they're doing this whole lineup but a little different on The Science Channel.
Anyone else watching? What do you think about the show ending?
24 replies and 3 images submitted. Click here to view.
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I think it's going to be sad not seeing karis boobs all the time.
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>>956999
previous season had more episodes, too bad about the short season.
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>>957001
Maybe without a steady paycheck she'll do humiliation porn. That'd be nice.

File: IMG_20160304_214813.jpg (267 KB, 1600x1200) Image search: [iqdb] [SauceNao] [Google]
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so /diy/,
i finally took my old flash gun apart since it broke 2 years? ago. the capacitor kicked the bucket, obviously. that wouldn't be a problem if it was some kind of widely available cap, but its a 1200uF 330V thing, 30mm across and 45 mm high. No luck on mouser or anywhere. The thing is that it needs to be in these dimensions, since it's housed literally in the hinge of the flash.

I could get a 250V replacement, but i'm pretty sure it'd get fried, i could go for a cap in larger dimensions but it'd need to be mounted somehow outside the...
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lookit dat bulge
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with part of the housing, a bit melted in some parts.
>>
pretty sure 1000uF will do. caps lose capacity with age, so they probably design in some over-capacity.

it's also worth measuring the actual voltage produced across a smaller cap. the 300V rating may also be over-design. i've seen some small ones that work at 170Vdc.

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