Asked by knicgotdat 8 years ago
I am currently brainstorming a firework ignition liquid that contains what i call (sparkler dust) sparklers work by a flame burning a concealed paper packet of (sparkler dust) once this ignites the sparkler sends colored sparks everywhere. now thought that would be an excellent ignition system for fireworks
Posted by HH Engineering 8 years ago
I am building a biodiesel production system. at different points in the process, a tank will have different liquids in it (sometimes more than 1 type, separated out). for instance, there is a point where glycerol sinks to the bottom, while biodiesel floats on top. what i want to do is drain the glycerol from the bottom of the tank (via electronically controlled solenoid valve), then when a sensor detects a change in material (biodiesel), shuts off that valve and opens another (final product tank). for the life of me, i cannot find a sensor that will do this for less than $100. preferably, i'd like to spend less than $30. i can work with a resistive type or voltage type sensor. i just need to be able to make that distinction of material change... any ideas? THANKS!!!
Posted by samurai1200 8 years ago
Asked by pallavishivdas 8 years ago
Do you need liquid mercury? I have 5, one pound bottles of liquid mercury. These were in dental office cabinets aquired through an estate sale. Not looking to make a killing, just want it to go to a responsible person. These are in the Detroit Michigan area.
Posted by urdzy 2 years ago
I'm in a rush to know for a project. Thanks. =)
Asked by lutziepv08 8 years ago
Ben Krasnow built a machine that makes liquid nitrogen for under $500. It's made with many parts he bought off of eBay and can generate a liter a day of the stuff at a cost of $1.15 per liter. Check out the link for more info. The first video is from this year's Maker Faire and the second shows the effect of liquid oxygen on a BBQ. DIY liquid nitrogen generator via adafruit
Posted by fungus amungus 7 years ago
Hi guys, anyone knows the concept behind this https://www.youtube.com/watch?v=nAJvbFYtpIU. It is a wireless drink pourer, that can control the liquid flow. Can't find if something like this can be made with Arduino. Does some one have an idea if this can be done?
Posted by justforcavaliers 5 months ago
I Need a help can i use caustic soda soda ash and good oil to make liquid soap instead of potash?
Posted by MichaalAddo 3 years ago
I like those reed scented air fresheners but I don't want to spend big buck buying a new one every time I run out of liquid. I figure that someone in the community must know how to make the scented liquid since there are perfumes on the site.
Asked by HollyHarken 8 years ago
You know those liquid motion toys you often find at places like Spencer gifts in which a denser liquid (usual bright colored) drips down onto a spiral and you can watch this discrete bubble ride on down? I'm wondering what's inside them and if its feasible to make your own. I've heard lots of things, that the clear liquid is usual a light oil and the colored part is water. I've heard the reverse, I've also heard that there is no water in these things that both are different oils.any help would be appreciated. if your still wondering what im talking about heres a place that sells them : http://www.officeplayground.com/spiraltimer.html
Posted by SpinningCone 10 years ago
Still putting my solar device together and I'm still having some trouble getting the working fluid (ethanol) to boil. Almost there. I was wondering tho if there's not an easier way. Is it possible to by adding heat, make a gas dissolved in a fluid bubble out. Like if you heat up something like pepsi, get all the CO2 to gasify. And, how would you get the gas back in?
Posted by SolarFlower_org 8 years ago
Question says it all. Ideas, Ibles that have that information, etc is greatly appreaciated.
Asked by razzlekunai 9 years ago
I'm going to a con this summer and am building a computer for the LAN party. Would it be possible to use Mountain Dew as the coolant for it?
Asked by mad magoo 7 years ago
No real point to this but I wanted to post anyways because it is kinda cool. Went to the doctors office with my wife today because she had this spot on her ear that was bothering her. Well the doctor wanted to freeze it with liquid nitrogen to get rid of it. Well of course my ears perked right up because to be honest this was going to be the same time I was even in the same room as this *cool* stuff. I asked her to pack some up for me to take home. She laughed and said she wished she could but did not have anything to transport it with. But she brought in a styrofoam cup about half full of it. She used a quetip to apply it to the spot on the ear three times. Then handed me the cup and said "I know the geek inside you wants to play with it.". Our doctor knows us well. But the bummer part was that I did not have anything to put in it. So since the only thing I had to freeze was myself I put the quetip on my finger. ......Yes this hurt. But it was still fun. Then I was left to just watch it boil and then blow on it once in a while. But when we were leaving I handed the cup back to her since I figured I could not leave with it and it was almost gone anyways. Then she said something she liked to do with it was to pour it on the floor. I was pretty cool to watch the "fog" it kicked up and listen to the floor crackle. Anyways, that is my story of the day. I did not get to do much with it, but it was still *cool*.
Posted by jcaresheets 5 years ago
Hi everybody! How are we all? I'm working on my latest project sending a weather balloon to around 100,000 feet and capturing the journey on camera. I've done it before as you may see on my blog www.joshingtalk.com. Anyway, my newest project involves making art at around 100,000 feet and this is where you could help! I know this could be done fairly easily but I do not have the knowledge to do it. I need a container that dispenses a small solution of liquid every 15 minutes. Now I've done a lot of research and this is the best I can come up with: http://www.amazon.co.uk/Fishmate-Automatic-Aquarium-Fish-Feeder/dp/B000YK5W18 It's gravity action, many compartments, on a rotary basis, at timed intervals BUT it will only allow for a few rotations over several hours. I'm looking for 8 rotations over 2 hours. I also checked out water timers but they seem a bit more complex. Maybe you have an alternative idea? Maybe it's 5 minutes of fiddling for you? It feels like to the right person, this should be fairly easy to overcome. I'm based in the UK and if you would like to help me with this project, I'd love it and be really appreciative! It's all good fun and you could see your device hovering at 100,000 feet.... Many thanks, Josh Update- Another vital thing I forgot to add is that this device needs to weigh under 200 grams.
Posted by JoshingTalk 5 years ago
I would like to make water cooling for laptop. But not sure if it will cool good enough, tell me what you think. I'm thinking to use copper tube, plastic tubes, some reservoir. In reservoir should be wave maker for aquarium (like this one: http://www.amazon.com/gp/product/B009YEEW2K/ref=pd_lpo_sbs_dp_ss_2/175-5374395-0420233?pf_rd_m=ATVPDKIKX0DER&pf_rd_s=lpo-top-stripe-1&pf_rd_r=03QDBA7BQG1ZPRCY7GAP&pf_rd_t=201&pf_rd_p=1944687582&pf_rd_i=B013Q5RTFO) for quiet (without noise) water circulation through a tube.
Posted by RoS9 2 years ago
Hi all! I'm looking to find an Instructable for an Arduino-driven multiple liquid dispenser. So for example, let's say I wanted to test 100 different combinations out of 20+ liquids (juices?). I want to be able to push a button, and that dispenses x-liquid of a-volume, and then I push another button that dispenses y-liquid of b-volume using an electric dosing/metering pump into a main mixing reservoir. Something like the Bartendro, except on a semi-precised millileter scale? https://www.kickstarter.com/projects/partyrobotics/bartendro-a-cocktail-dispensing-robot Thanks! - Bryan
Posted by bryanquocle 3 years ago
Basically, I was thinking in my sleep as I usually do. I thought about how less dense things float on top of more dense things. And this got me thinking towards this: Are there any gases that are more dense than the human body? If so, we could float on this particular gas (with gas masks or oxygen tanks of course). This also led me to think about: Are there any liquids which are lighter than air? We could have a swimming pool of sorts that floats on the ceiling. All we would need is the right chemical. Any scientists out there? (I know it is unlikely as states of matter generally mean that in terms of density, Solid>liquid>gas.
Asked by The Jamalam 8 years ago
Im looking to build something like a milk dispenser where the milk can be sent through a tube and opened with either a spigot or a handle. It could also be something similar to a box of wine, where the wine is in a bottle, and flows when the spigot is opened, but I would like to know how I can have it so that it comes through a tube when opened. Is it possible to create something that will pull the milk when exposed to air? thanks for any ideas! If these plans are already made or something similar, can someone send me a link? thanks again! Anthony
Posted by lordpyro7 4 years ago
Im trying to make a "chin extension" for a costume I have in mind for Halloween, but I dont want to have to form it from liquid latex every time I put it on. Is there a way to make such an appliance that can be reused?Thanks, -xD
Asked by ! xD ! 8 years ago
Hello all, I may just not be searching the right terms, but I can't for the life of me find a way to have colored liquid with bubbles in it run through surgical tubing. (Basically, the bubbles show that the liquid is flowing.) I've seen this effect in movies using smaller diameter tubing and also in larger tubing in the frame work of old style juke boxes. For halloween, I'm thinking about a throwing a mad scientist party and using a black light lit fluorescing liquid In the tubing. Bonus points if it's portable for the costume! And yes, I haven't really played with pumps before, so if most do this out of box, please be kind. :) many thanks!
Asked by oldmicah 6 years ago
I'm overhauling the design of my solar concentrator and now need a good way of lifting a fluid, so as to pour it into a waterwheel and provide rotation. I have a little solar concentrator and boiler to generate heat or steam. What's the best configuration to give as high a rate of flow as possible? I'm hoping for something in the range of 500 ml per minute, rising about 30 cm. I've briefly played around with the attached setup, which is a very basic bubble or airlift pump, The black is my wheel, the blue a reservoir for the fluid (ethanol), the white is the boiler putting out steam (ethanol vapour) and the light blue is a mix of the liquid and bubbles of vapour which rise up the pipe and re-enter the wheel. It actually works ok, but even optimally only gives a third the rate I'm after. If necessary I can grab some valves from old bike innertubes, or other basic materials if they'll help. My previous design was to have the bubbles of steam going directly into the wheel, which was filled with ethanol. This works but requires heating 3 litres of ethanol to just under boiling. Not impossible but a bit of a hassle. I'm hoping lifting a liquid instead will be a bit easier.
Posted by SolarFlower_org 8 years ago
So i was disassembling a toshiba rear projection for the fresnel lense, and figured i'd pull the rest of it apart and see what parts i could salvage, i got to the gun assembly (i think its called that) and was pulling one of the guns to bits to salvage the lens mount and discovered there was some sort of liquid between the gun and the lenses, it smelt strongly like alcohol and burnt when i held a flame to it long enough, i got some on my hands and my hands started getting a burning sensation so i washed it off and stored it in an icecream container can anyone tell me what the liquid is? why is it inside the tv/projection guns?
Asked by mammasboy 3 years ago
I guess this question has two parts. I'm prototyping a solar energy device, part of which is a light pipe to transport the collected solar energy, about 300 - 2500 nM. I'm planning on making this from a flexible tube filled with a highly refractive liquid, stoppered at each end with clear plugs. It looks like the materials I should be using are: Tube: Teflon (PTFE, FEP, AF 1600, AF 2400) in that order of desireablitity, lowest to highest. The AF 2400 has a refractive index of 1.29, which is the lowest of any polymer. Apparently. Core: Mineral oil / liquid paraffin. Plugs: Acrylic or normal glass. Thoughts? Also, where would you suggest I try to find these? (I have the mineral oil already) Keeping in mind that I'm in Madrid, Spain. Getting this to work would make a huge difference to solar microgeneration, as transporting the energy is currently a bit of a nightmare. Thanks heaps, Daniel.
Posted by SolarFlower_org 8 years ago
My mood ring broke and I got some of the stuff on my hands is it toxic?What should I do.
Asked by coolpizzadude 9 years ago
Ok, how about this; Submerge a waterwheel type structure with cups facing downwards on one side. Under the cups you have some kind of heating element. The fluid is methanol or some other low boiling fluid. A very small amount of heat from the element will produce bubbles, which rise and are caught in the cups, the wheel turns and can generate electricity or whatever. I'm using this principle in another application, but thought it could be quite an efficient means of generating electricity from heat. If the meths is sitting at forty something degrees and boils around 50, it shouldn't take hardly any energy to tip it over. And since you're effectively generating force from gravity (the weight of the fluid on the other side of the wheel) you're kind of getting ten times your force back. ie producing one litre of bubbles will give you 9.8 Newtons of force (for water, 8ish for meths). So (excuse my dodgy maths) 125 litres of bubbles in an hour would give you 1 kiloWatt hour? One cola bottle per minute, doesn't sound very much and that much energy could easily be produced through concentrated solar. Slight risk of explosion... How efficient do you think it would be, overall?
Posted by SolarFlower_org 9 years ago
I know that you can make some metals float by coating the magnet in liquid nitrogen. How can I make a pair of magnetic gloves and will my idea work?
Asked by GatorSECChamps 9 years ago
I would love to tell my friends that my computer uses car oil to keep it cool. I would probably use SAE 5-10 oil with a SA or SB rating.
Asked by bowmaster 8 years ago
I did not make an instructable, but i thought you folks might want to see my homemade external water cooling system for my inspiron 5150. it works very well and not a single drop of water has leaked. The average CPU temp drops about 8 degrees Fahrenheit when i use it..
Posted by linkey 10 years ago
I just want to know if there are any chemicals that would be easier to get a hold of than having to go out and buy the ferric chloride or other etchants.
Asked by PyroMonger 8 years ago
I know how to make the pigmentation powder - how do I make it a liquid please?
Asked by aitchvee 8 years ago
I dont have any liquid starch and I want to make some silly putty. I want to use it as a sugru alternative for the life hacks contest.
Asked by Iam4NUru 7 years ago
I am in the middle of designing a system to produce liquid air using the von linde process. the termos would not be under any pressure, but it will get quite cold. can a thermos using a glass vacuum insulated inside be able to withstand temperatures below -180 degrees celsius?
Posted by pedrogabman 8 years ago