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  • Captain_Nemo commented on Mastering Me's instructable Easy Life-Saving Water Filter4 months ago
    Easy Life-Saving Water Filter

    Power tools can be used safely, this 'filter' can not.

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  • Captain_Nemo commented on Mastering Me's instructable Easy Life-Saving Water Filter4 months ago
    Easy Life-Saving Water Filter

    No, you don't have to get rid of the dirt and gravel before using a proper filter. You might extend it's life a little, but it's absolutely not necessary. Nitpicking semantics is not how you win debates. Only people with losing arguments say: "Let's agree to disagree." You're wrong, and you know it. This instructible is dangerous, and you know it. What if some little kid finds this instructible, drinks logging spill-off, and dies?

    It's not a filter. All it does is make water look clear. Thewater isn't clean. If the water you 'filter' with that thing is contaminated(lead, mercury, parasites, etc.) you will still have the contamination in thewater. If you drink that contaminated water, you can get sick and die. I don’t ‘disagree’with this instructible, I’m saying it’s dangerous and should be removed. Theauthor has replied with some articles he hasn’t read, trying to pass off his instructibleas the same as a commercial filtration system. As for a ‘tip’, how about ‘deletethis instructible’?

    A few inches of sand isn't going to remove crypto, you need a real filter.

    Dying from crypto or mecury poising is worse than dying from dehydration. Buy a proper filter, and you wont die from either.

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  • Captain_Nemo commented on Tomtucker's instructable Tiny House Washing Machine Window7 months ago
    Tiny House Washing Machine Window

    Not code compliant.https://windowanddoor.com/article/codes-standards/international-code-requirements-residential-windows-doors-2016

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  • How to Design Custom, 3D Printable Braces for Arm Injury

    It's barely more waterproof than fiberglass, the tiny valleys you get with3d printing will support bacteria colonies.

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  • How to Design Custom, 3D Printable Braces for Arm Injury

    As someone who has had an arm injury, I can say I've seen no 3D printer filament that is strong enough to cope with that injury. I've also never seen a cast made from plaster; The cast I had was fiberglass, which was more than strong enough, along with being small and lightweight. 3D printing a brace is a step backwards, you now need a cad operator just to use it; Firberglass can be applied by a nurse.

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  • Captain_Nemo commented on Penolopy Bulnick's instructable How to Decrystallize Honey11 months ago
    How to Decrystallize Honey

    The bees cool the hive. https://now.tufts.edu/news-releases/how-honey-bees-stay-cool

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  • The OreServer - a Raspberry Pi Dedicated Minecraft Server With LED Player Indicator

    I used to run a server that had a pure survival world, a pure creative world, and a hybrid world at the same time (along with nether and end). Not recommended a raspberrypi, but not hard on a regular computer, or even better, an actual server.

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  • Captain_Nemo commented on macgeek's instructable Alexa Controlled Toilet1 year ago
    Alexa Controlled Toilet

    That explains a lot.

    There's this great new stuff called 'antibacterial soap", it's great, you should try it.

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  • Captain_Nemo commented on DIY KING 00's instructable DIY Bladeless Fan From Scratch1 year ago
    DIY Bladeless Fan From Scratch

    You could combine the two ideas. Water cooling components for pc's are getting more common and less expensive.

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  • Captain_Nemo commented on DIY KING 00's instructable DIY Bladeless Fan From Scratch1 year ago
    DIY Bladeless Fan From Scratch

    A peltier just moves heat, what will you do with the heat that builds up around it?

    $20,000 USD, I'll start when the check clears. /s

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  • USB Foam Cutter (PVC) - Hot Wire

    It depends on your battery bank capacity, battery bank quality, and wire gauge.20cm of 36 gauge stainless steel wire has a resistance of about 12 ohms, at 5v it would draw about .42A, a high quality battery bank would last about 24 hours.20cm of 24 gauge stainless steel wire has a resistance of about .72 ohms, at 5v it would draw about 6.94A, a high quality battery bank would last about 1.5 hours if it could actually supply that much current. A low quallity battery bank would probably catch fire.

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  • Captain_Nemo commented on duncancurry's instructable Low Cost Radar Speed Sign1 year ago
    Low Cost Radar Speed Sign

    1. How long until this gets stolen?2. How many people take this as a challenge to try to overload the machine?

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  • Making the Fanciest Beer Koozie You Ever Seen!

    Wood actually conducts heat better than air, so this is worthless as a 'koozie', might make a nice vase or bowl design though.http://www.engineeringtoolbox.com/thermal-conducti...^Thermal conductivity chart, the lower the number, the better the insulator.

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  • Captain_Nemo commented on Steve Willson Kujur's instructable Build a Power Bank in $21 year ago
    Build a Power Bank in $2

    Actual cost is $41.96, not the $2 advertised.Connecting batteries of different capacities in parallel is just begging for them to catch on fire.

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  • Bentonite Green Sand Recipe. Sticky, Oily and Just Great!

    At first I thought this was a recipie for home made cat litter... You might want to make something other than balls with it for the email thumbnail...

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  • Captain_Nemo commented on yobots's instructable Add a Cool Features to USB Speaker1 year ago
    Add a Cool Features to USB Speaker

    Put them in parallel with the other LEDs, each transister should be able to power 9 LEDs.

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  • Cheap Solar Panel for Under $30

    The myth that solar is sustainable is pretty common now days, it is in fact not sustainable. The cells need to be make from something in the first place, which we will run out of if we make enough panels (that'd be a lot, but will happen eventually), damaged cells need to be replaced, you can probably recycle the material, but you will never get 100% back from recycling. Aside from damage, panels also degrade with age. Between those three factors, we will eventually run out of materials to make solar panels, and all solar panels will eventually fail, therefore, solar panels are not sustainable.Solar panels are also not a feasible source of power, being that there is a fixed amount of energy they could possibly harvest, which is in turn dampened significantly by their efficiency (lack th...

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    The myth that solar is sustainable is pretty common now days, it is in fact not sustainable. The cells need to be make from something in the first place, which we will run out of if we make enough panels (that'd be a lot, but will happen eventually), damaged cells need to be replaced, you can probably recycle the material, but you will never get 100% back from recycling. Aside from damage, panels also degrade with age. Between those three factors, we will eventually run out of materials to make solar panels, and all solar panels will eventually fail, therefore, solar panels are not sustainable.Solar panels are also not a feasible source of power, being that there is a fixed amount of energy they could possibly harvest, which is in turn dampened significantly by their efficiency (lack there of) which peaks at 22% with most systems in use around 11%.

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  • Captain_Nemo commented on gravityisweak's instructable Coat Hanger Drill Bit2 years ago
    Coat Hanger Drill Bit

    None, I lost zero fingers. You know why? Of course you don't, so I'll fill you in. I DID NOT USE A POWER TOOL.

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  • Captain_Nemo commented on gravityisweak's instructable Coat Hanger Drill Bit2 years ago
    Coat Hanger Drill Bit

    Actually, I got into trouble a kid for breaking coat hangers, would get bored and sit there and break half a dozen by bending them back and forth. I was 5. If a 5 year old can break them with his bare hands (not on the edge even, right smack in the middle of the straight) what do you think a power tool will do? You're right about the hardness making it not bend, once it's fatigued, it doesn't bend, it shears, as in it breaks in a way that gives it a nice sharp point to go through your, skin, muscle, nerves, bone, and/or cartilage. Whoever uses this way to drill, have fun losing the use of your hands, I hope you have good health insureance.

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  • Captain_Nemo commented on gravityisweak's instructable Coat Hanger Drill Bit2 years ago
    Coat Hanger Drill Bit

    Yes, there are post here that support using unsafe tools, just because there's a consensus doesn't mean that the consensus is correct or safe.Just buy an actual drill bit people, a few bucks is not worth losing chunks of flesh and bone.

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  • Captain_Nemo commented on gravityisweak's instructable Coat Hanger Drill Bit2 years ago
    Coat Hanger Drill Bit

    Right, because half inch rod is the same as coathangars... You ever hear of metal fatigue? It occurs when you bend certain metals to much, it makes them brittle, so brittle, you can easly bend small (coathangar size) with your bare hands.

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  • Captain_Nemo commented on gravityisweak's instructable Coat Hanger Drill Bit2 years ago
    Coat Hanger Drill Bit

    Don't do this, not worth it. My dad did this when he was younger, cleaning a heater radiator, the 'bit' broke and went through his hand, took a piece of bone with it.

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  • Captain_Nemo commented on RCLifeOn's instructable DIY Mini Air Conditioner2 years ago
    DIY Mini Air Conditioner

    LiPo near water is a fire hazard, if it shorts and catches fire, you will have no way to put it out (water doesn't work, neither will normal fire extinguishers), if the toxic fumes from it doesn't kill you, your house burning down might.That's a real butcher job you did with the a/c explanation, might as well say it works by magic. How an a/c actually works is by moving the heat from the inside air to the outside air (go stick your hand in front of the exhaust on the outside of the unit).Ice is made by moving the heat from the water (and air) in your freezer, somewhere else (most likely inside your house unless you have your freezer outside), by trying to make your computer room cooler, your making the rest of your house hotter/making your a/c work harder.Just go buy a $10/$20 fan from ...

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    LiPo near water is a fire hazard, if it shorts and catches fire, you will have no way to put it out (water doesn't work, neither will normal fire extinguishers), if the toxic fumes from it doesn't kill you, your house burning down might.That's a real butcher job you did with the a/c explanation, might as well say it works by magic. How an a/c actually works is by moving the heat from the inside air to the outside air (go stick your hand in front of the exhaust on the outside of the unit).Ice is made by moving the heat from the water (and air) in your freezer, somewhere else (most likely inside your house unless you have your freezer outside), by trying to make your computer room cooler, your making the rest of your house hotter/making your a/c work harder.Just go buy a $10/$20 fan from the store, they're not that loud unless you max them out, and they wont kill you/burn down your house.

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