Question by aaronbeemer 10 years ago | last reply 3 years ago
Hi again iables, I want to build a oil submersable ps3 and have a few questions, 1. Will the oil degrade the silicone on a glass fish tank and cause a leak? 2. How do i extend the power and eject buttons off the motherboard? 3. How do i extend all other wires for the hard drive, power supply, bluray drive, hard disk drive and any i have missed? 4. What would be the best way to stop wicking in the wires from slowly emptying the oil? 5. Would any normal pc case cooling fans be ok to circulate the oil or would they burn out from the extra current draw? 6. Would a normal overhead fish tank filter be ok to use as a diy radiator pump? 7. Would this prevent the dreaded YLOD as iv already had it twice and fixed it myself, with relative success (about 2 months or 100ish hours), and this time im going to oven bake instead of heat gun as this method is rumoured to provide the best results, anyway i hope because of the even cooling provided by the oil bath, then it would keep it much cooler than air cooling? 8. What about using themoelectric cooling pads with huge heatsinks to provide extra cooling? 9. Would the wireless and bluetooth antenna's need to be extended or would they be ok submersed? i thought radio signals were blocked by water so is oil the same? If they do, how would i go about this? 10. Where would i buy mineral oil? I heard that Johnsons baby oil would work? 11. Could i use something similar to an undergravel filter in a fish tank to generate circulation if a pump head wont work? 12. What metal piping should i use for a diy radiator as i heard that mineral oil is very good at dissolving some things and im worried that the contamination may cause conductivity? I think that's it... if not ill add more when i think of them, many thanks in advance for any help!?
Topic by Xmortx114145 6 years ago | last reply 6 years ago
Hey all, i wanted everyone's thought on submerging my xbox 360 in mineral oil, im thinking of build an acrylic case for it. ( too keep it roughly the same size). i know it will work forsure i just want to know if im going to get better results with oil rather than air. and should the xbox be on stand-off in the case for flow under the mobo? could silicon hold the whole case together with about 3-4 liters of oil ( maybe less) mounting the dvd and harddrive on top outside the case? and also sealing the top of the case? (i still want to be able to get in it after obviouly)
Topic by IIwootII 8 years ago | last reply 8 years ago
I have seen led music cubes and prisms here but is it at all possible that you could make one that does light up to music in a plexi glass cube but filled with mineral oil? If I were to do this of course itd have to be sealed water tight so nothing leaks, but is there anything else that might need to occur? Per say would I have to add a dye to the mineral oil to get a good luminosity effect or would it be shining bright without it? If you could throw me some things that might be flawed in this idea or advice I would appreciate it lots!
Question by PersonPwner 7 years ago | last reply 2 years ago
I wanna bulid a submerged computer what type of mineral oil should i use, or do u know a better type of liquide i should use instead?
Question by Laknight117 10 years ago | last reply 9 years ago
I'm thinking about creating an art project, but would need to submerge the glass part of a plasma ball in mineral oil (which I've heard is not conductive). Would this be dangerous?
Question by rockyreasoner 9 years ago | last reply 9 years ago
hey guys, my canola oil submerged pc system seems to shut down every time i use OCCT to get my system really working hard, i can tell you whats not the problem, Fresh Os (since last month), Not Overheating definitly. theres nothing wrong with my pc that i found so far other then running OCCT maybe i should try another stress test software? Anyone wondering what the deuce a "Canola oil subermeged pc" is check here: www.instructables.com/id/Oil-Submerged-Fish-Tank-Pc/ also for system spec if your wondering
Topic by IIwootII 8 years ago | last reply 8 years ago
material(wire,rope.ribbon) with tensile strength 20 lbs in air but no strength in liquid water. Answered
Something strong in air (tensile) but nothing when submerged in water. thanks mark
Question by markbonsignor 7 years ago | last reply 7 years ago
A while back, I decided to submerge my flyback in canola oil to stop it from ruining itself. As it turns out, submerging a flyback in canola oil is a very stupid idea. I want to clean all the oil off of it so I can do it right the next time, but I have no idea how to safely do that without damaging the flyback. Can anyone help me out?
Question by Shagglepuff 7 years ago | last reply 7 years ago
I want to make a depth gage to fit into a submergable watch. a power source is also needed to fit.
Question by sammy mast 9 years ago | last reply 9 years ago
We added a camera to our sea perch but now it won't submerge properly. Are there any suggestions or any sites that would help with the modifications to the sea perch?
Question by connorsjo 9 years ago | last reply 8 years ago
I plan on submerging blue jeans fabric (Denim) in hot black coffee in attempt to stain the fabric. if i do this would it ruin the fabric? and is it a good idea?
Question by TimTheScarecrow 9 years ago | last reply 9 years ago
How do I direct visitors of my instructable to someone elses? User RedHandFilms has a featured on about building a basking rock for a bearded dragon, I built rocks to submerge and grow moss. I would like to give RedHandFilms credit for inspiration.
Topic by gonar 9 years ago | last reply 9 years ago
Hi i need help making a self inflating key chain that uses a balloon or something to carry keys to the surface of the water, it needs to inflate when fully submerged but can handle some minor splashes. something similar to this: www.water-buoy.com
Question by rocketman217 9 years ago | last reply 9 years ago
I'm unsure if the industry standard engine coolant can have electronics (specifically dc motors) completely submerged in it without any ill effects like shorting going on. By the way, its for an impeller coolant pump.
Question by The Ideanator 9 years ago | last reply 9 years ago
I want to submerge a 2 meter tall face, what kind of material plays the nicest with Hydrographic printing? is this technique fine? is the 2 meter thing a problem? https://www.instructables.com/id/Fine-Art-from-Cardboard/ if I stay on step 4, is it subergible? I want to look at all the possibilities
Topic by DIAGONALLIS 1 year ago | last reply 1 year ago
I have a 3,000 gallon inground pool and no heater. If I took a barrel, stuck it in the shallow end just a half inch above being totally submerged, and lit a fire inside it it would it work to heat the water around it and eventually heat up the pool?
Topic by jakeotron 10 years ago
trying to buy a Low Viscosity silicone oil any idea where i could find it i need about 10gallons please help.
Im buliding a submerged server and i want 2 use silicone oil but i cant find any so any ideas would be helpful thanks.
Question by Laknight117 9 years ago | last reply 7 years ago
Questions for you scientific types. Would this work: I have a 3,000 gallon inground pool and no heater. If I took a barrel, stuck it in the shallow end just a half inch above being totally submerged, and lit a fire inside it it would it work to heat the water around it and eventually heat up the pool?
Topic by jakeotron 10 years ago | last reply 10 years ago
I have a 10" 18V circular saw, never used/brand new, that my kitten decided to urinate all over :-( Is their a way to clean it? I was thinking about submerging it in a bucket of rubbing alcohol to soak for a few hours. Then let it air dry for a few days to a week+ to make sure it drys completely.
Question by smkoberg 8 years ago | last reply 8 years ago
Hello everyone, I want to build a platform that I can use to mount lights on and make it to move in all directions by using a dynamo/motor/servo. Also the dynamo/motor/servo will be submerged in water at all times, so is there a possibility of making it watertight, if so how to do it? Here are some designs that I did in order to show you that I have in mind. Thanks
Question by Chamburn 4 years ago | last reply 4 years ago
Hi can anyone here help me, I have a industrial power drill like power head on a machine I think it might drive my machine via a 1/2" or 3/4" drive. I suspect the drill has been submerged in water on a coal mine in queensland. The brand is called "wolf" from london and from what I have found out they no longer exists. can this machine be restored? thanks ash
Topic by broc113559 5 years ago | last reply 5 years ago
Does anyone know how to test for output quantity of HHO gas from a Hydrogen Generator when connected to a vacuum such as your intake manifold? The output is easy to test when just checking with a submerged bottle with the generator running on its own without being hooked to a vacuum source. The generator will put out substantially more volume under vacuum than when not. How do you check for output volume when under vacuum? Pylgram
Topic by Pylgram 10 years ago | last reply 10 years ago
My wife just had an amazing success when we went down to Newport Beach, California to get venoplasty to relieve many of her symptoms following a stroke. http://www.youtube.com/playlist?list=PLkzXlmAwZTZfQ01RnN-8Ip5lUz0HrNWzN We pay for national medical insurance in Canada and this treatment is not covered. (Even though it clearly works, ) One road block is that an expert doctor here could not find any evidence of reflux in blood flow to or from the brain. (Some MS patients have damaged valves in their neck veins). Now, given that each heart beat raises blood pressure from 1.5 psi to 2.3 psi about once every second and that valves are actuated by the blood flowing backwards, I find the "expert doctor's" results impossible to believe. I am not totally without knowlege in that area either because I made a low pressure airlift pump this year that has a much higher lift submergence ratio than the normal ones. (The airlift in a bucket one). I was told that the maximum lift to submergence in these things was probably not much more that 10 to 1 but I managed to get over 20 to 1 lift to submergence primarly by reducing reflux. Also, I observed that the effects of this reflux can extend conciderable distances from the "valve" itself and are different in small tubes than in big tubes. Therefore it is possible (Likely even) that a damaged valve in a persons jugular will have its primary effect in a capallery somewhere in the brain up to a foot away from the damaged valve. So if someone made this model, I think it is likely that they can contribute to the rapid advancement of medical science! Brian White
Topic by gaiatechnician 5 years ago | last reply 5 years ago
Why don't people modify MOT's for high voltage? I just did I left about 3 layers of primary windings, removed the middle coil and the shunts put it back together then submerged it in oil, I also removes a couple of layers of the secondary windings to get rid of the resin so the oil can get in. It worked amazingly I don't understand why people don't do it.
Question by The MadScientist 8 years ago | last reply 8 years ago
I am building a project that has dimensions of roughly 2 inches by 2 inches by 1 inch. There are plenty of LEDs, exposed wires, etc. that I want to cover up. Does anyone know of a material that I could wrap this in, perhaps a sort of heat shrink for it all? It does not need to be protect it from being submerged underwater or form a protective barrier for being dropped. Hopefully something a little more professional looking than bubble wrap. Any suggestions would be greatly appreciated.
Question by Hammock Boy 6 years ago | last reply 6 years ago
I need to find a way to make lexan/plexiglass clear green. Should I use window tints? Does that come in the color I want? More importantly, does it come in a spray paint? Should I heat up my pieces and submerge them into hot water with the color in the water and let it soak? Should I just paint it? I want to be able to clearly see through it, but I also want a very deep (not dark, deep) green tint to the plexiglass. Can anyone help me?
Question by MattGyver92 9 years ago | last reply 5 years ago
Well, I seen the instructable to submerge a PC motherboard in non-conductive mineral oil to cool it and brainstormed that this could be the perfect fix for my RROD problem with a early model Elite. I have drawn up plans and already found a few problems and would like some input on them. I do not expect a expert answer but I'm sure there are people out there that can make a far better assessment on this than I. 1.) Will the oil conduct and move enough heat to be more effective than fans? 2.) The case I have designed requires roughly 2.8-3.0 Gal of mineral oil and if i was to consider circulating it through a radiator, what would an appropriate pump size be? ( gallons or liters per min) 3.) Also I would plan on using only wireless controllers so is there a way to solder some leads onto the sync button and maybe to an external momentary switch so I would not need access to the MB everytime we wanted to add another player? Thank you for any help you can provide on any of these issues. Regardless I will begin work on it tomorrow as a experiment and to challenge myself. I will be making an instructable on this when it is done. And many thanks to the original author that inspired me to take it a step further. https://www.instructables.com/id/Mineral-Oil-Submerged-PC/
Topic by jf78 8 years ago | last reply 8 years ago
I believe that many bubble pumps for aquariums can bubble the air about 2ft deep under water. So if you use the air bubbler as part of an airlift pump, how high can you pump? Here is a link about airlift pumps http://www.animatedsoftware.com/pumpglos/air_lift.htm (unfortunately the wikipedia airlift pump entry is commercial spam). Anyway, the aquarium air pump I used produces about 2 liters of air per minute (so not so much). So here are the contest rules. Your airlift pump has maximum submergence of 2 ft. You must use a T-Joint to introduce the air and you use an appropriate pipe diameter to airlift the water higher. The height pumped is measured from the top of the water in the water reservoir to the top of the airlift pipe and the submergence is measured from the top of the water in the water reservoir to where air enters the T-Joint. So, winner and Instructables world record holder is the person who pumps water highest under these conditions. I will start with my example. Thats pretty much as high as I will go but if you have a suitable area, I think you might beat me! Competition is ongoing. Best of luck Brian
Topic by gaiatechnician 8 years ago
I was wondering where the best place to ask a question would be, ive been playin with peltiers lately and the ones i have are 0-16v 026A i was wondering if there was any way to make a power supply for them or some way to usa like a car batt. i was just worried as my deepcycle is like 1200 amp dont really want to blow up my 30 a piece tec's the goal eventually is to mount like 10 to the undersides of an old aluminum icetray so i can submerge the bottom in water and fill the tray up, flip the power switch and in like 40 seconds have myself some icecubes
Topic by furry1 8 years ago | last reply 8 years ago
Iâ€™m getting ready to do some traveling, and Iâ€™m looking for a camera that can hold up to a beating. I need a digital camera that can be submerged in at least 20 feet of water, be buried in sand, and has at least a 5x zoom. Iv seen this one, http://www.hammacher.com/publish/11169.asp , but Iâ€™m wondering what else is out there. Now Iâ€™m not planning on putting the camera through all of that, but I donâ€™t want to take any chances of killing my camera out in the middle of nowhere. Any help would be appreciated. Thanks Guys.
Question by Cthulu 9 years ago | last reply 9 years ago
Soda Bottle Fusing? Anyone ever successfully joined two soda bottles either by heating fusing or by adhesive glue?
I want to take standard 2-liter soda bottle and join a few of them together into a short column. The seam or joint needs to be able to hold together and be air-tight and withstand some pressure. I want to submerge the bottles in the water, and so the joints must be able to withstand the forces against the outside of the bottles. Anyone tried fusing the edges together again; like cutting the bottoms off of two bottles and joining the two cut edges together to form a double length bottle? If so, how did you do it? Any special equipment? Thanks in advance!
Question by Anim8ed 8 years ago | last reply 8 years ago
This probably looks like a really strange thing to ask, but I need to know what kind of temperature K'nex can endure before it softens and/or looses shape. I am building something which will need to be able to withstand hot water/steam splashing onto it (but not submerged in it), as well as being near a considerable heat source. I've look for what they are made of, but nothing has come up, though I presume they are made of a mix of low-to-mid-temperature polymers with a high toughness. Don't get any mad ideas!!! Image is from Bartboy's candle rocker.
Topic by TheFoofinator 6 years ago | last reply 6 years ago
So, I work at a science center and we have our annual Engineering Olympics coming up and we've been brainstorming something about thermodynamics. The general format is 6 teams from different highschools in the area are given a task to complete from one engineering discipline, such as construct windmill blades to achieve the highest amperage from an attatched motor or insullate a container of water with random materials to prevent it heating up when submerged in boiling water. This year, I haven't really found an idea for thermo that really excites me. Thermo isn't the easiest thing in the world in highschool, and since we're dealing with kids from different schools, we have no way of knowing how advanced they are. So, any ideas of a project to test their thermodynamic mettle?
Topic by Dinkum Thinkum 10 years ago | last reply 10 years ago
There is a project I have been vigilantly searching for on instructables and google. I remember seeing it on here a couple of years ago and now cannot find it anywhere.. The project consisted of Industrial cage jar lights, LEDs, Vegetable oil, and a fish tank pump and some other supplies.. The LED lights would be submerged in the jars with vegetable oil and the fish tank pump supplies air into the industrial lights and the oil bubbles.. I would love to find this project. I have been itching to find it for the past year or so. If anyone knows where to find this project, Please pm me.. I would appreciate it immensely.. Or if anyone knows where to find the Industrial cage lights i would appreciate any help in this matter.. Thanks..
Topic by spinpoidaily411 6 years ago | last reply 6 years ago
I would like to build an Immersion Circulator for making sous vide food. Here is an example of what I am trying to copy: http://anovaculinary.com/products/anova-precision-cooker-pro It is basically just a precision water heater that has a built in water pump that moves the water around in a pot. It can heat water to a very specific temperature, and then hold it there. I don't care about built in timers, or fancy displays. I can set my own timer. I just feel like I there is a DIY way to make one of these that doesn't cost $200-$500. Unfortunately I know very little about things like submerged water heaters, higher temp water pumps, and temperature sensors. And by "very little," I mean, I know nothing.
Topic by Dolmetscher007 4 years ago | last reply 4 years ago
Hello guys, Thanks alot for reading. I don't know much about chemistry outside of my one high school class. We electroplated a penny. I have a 1.5ish square-foot piece of wood, and i am wanting to CHROME IT.... chrome paint kits cost hundreds of dollars, and i've before seen chrome-plated wood.. and i want to replicate the results. [img]http://www.eastcoastpowdercoating.com/liquid%20chrome%20guitar.jpg[/img]I'm looking for a cost effective alternative to expensive chrome kits (+300 dollars for a pint)In theory.... my method would involve somehow plating the guitar with some sort of metallic based paint, then submerging it in a chrome bath. [b]IS THIS POSSIBLE??[/b]Is there a metal chemical that can somehow be applied evenly to the entire surface of the wood? (i.e. paint?)What, and how much of the specific chemicals do i need, and where can i find them?I really want this to be mirrored. Thanks so much for your responses to my problem:P
Topic by punx777 11 years ago
Hi, my name is david. im working on a project, for a device that is roughly .25-.5 inches long. im trying to find the right material resistance wire for the application. the components are submerged in coolant to maintain a low temperature. i wish to have a resistance wire of some kind wrapped around the components to heat them to about 90 degrees as quickly as a possibly can, for only a brief time(fractions of a second) i am using a variable power supply to determine my power needs. im hoping to be able to send a quick "signal" through the resistance wire, and use heat as a sort of input/output system. the internal components will melt at temperatures above 100 degrees. so regulating the temperatures is key. now obviously since they will be submerged in coolant, the resistance wire will need to heat to higher temperatures in order to heat the other components. ive been doing some research on nichrome and kanthal wire. but from what ive seen so far, it almost heats up to quickly, to higher temperatures than i require. it is hard for me to do the calculations, since i dont know how many watts/amps etc i will be using. so to recap: temperature required about 90 degrees. (as quickly as possible, "flash heating" to 90degrees would be great) length is .25-.5 inch (the size will actualy be determined by the resistance wire i would prefer it to be as small as possible but i could make the module larger if i have to) variable power supply to determine my power needs(preferably the lowest possible power usage to conserve battery power) any suggestions on an appropriate material would be appreciated. i dont mind testing out different materials. i just dont want to spend thousands of dollars buying a little bit of everything and testing each one out one at a time. >< some experiments have suggesting silver coated nylon, but requires 20watts and a pretty sizable heating time. the heating coil will most likely have direct contact with the components, unless it is required to provide space between the coil and the components to heat it appropriately. i would prefer direct contact though to make the modules as compact as possible. currently the coolant is being pumped continuously through the whole system, but ive been working on plans for a valve to interupt the flow of the coolant during cycles where the coil is activated, if the need arises to keep the coolant from preventing the resistance wire from heating up appropriately.
Topic by DavidW433 2 years ago | last reply 2 years ago
Actually I have 2 questions pertaining to hydroponics. First you should know that I have a passive hydroponic system functioning right now the container is partially submerged in a nutrient solution with holes in the bottom of the container. The medium I'm using right now is perlite to allow more oxygen and act like a wick. I do have a top layer of aquarium gravel to anchor the plant better. I've been thinking of trying to add more oxygen to the roots by using an air pump. I was going to insert the tube from the top (the dry section above the water) pointing down to the wet section to blow some air to the roots. Would this be an unnecessary addition if I continue to use perlite as a medium? My second question is the title, would sawdust work as a medium for hydroponics? I assume it would be able to act like a wick for a passive system my concern is would the roots get enough oxygen in sawdust? Also most mediums are inert sawdust wouldn't be, would that have a negative impact on my plant?
Question by thecoonskin 6 years ago | last reply 6 years ago
We have a nice herb garden on our back deck. A few weeks ago, after a visit to a local restaurant, I decided to put a sprig of fresh rosemary into one of our olive oil bottles to create a flavored oil. I cut a sprig, washed it and dried it off, and inserted into the oil bottle. Within a few days, the flavor had permeated the oil well and it was delicious. Unfortunately, I forgot to keep the oil above the rosemary and the top of the stalk grew mold, so I had to discard all of the oil and thoroughly wash the bottle, which I then just refilled with good oil, no spices. However, I did really like the oil, so before I do it again, is there any secret or warnings other than "don't let the rosemary leaves get exposed to the air above the oil"? Is it going to grow something funky even submerged in the oil? How long should it keep? Would it be better to tightly cork the bottle (it has one of those dispenser spouts now, like a liquor bottle)? Should I dry the rosemary first? Treat it in any way? Any advice would be appreciated.
Topic by CMPalmer 11 years ago | last reply 6 years ago
I need to know how to install a water system from my well asap. Full details of hookup. I have an existing well with a submerged pump in it, but don't know if pump still works. Presently digging it out to put power to it and find out. Water "spout" coming out of ground also plugged and am trying to clear. I have a pressure tank ordered that I hope will work. Pipe to house all ready dug, checking patency and damage. If pump doesn't work, is it repairable?, ie., how does it work so I can repair. How does pressure tank work? Any tips to make this easier are greatly appreciated. I am senior, disabled gal who is at war with water company because they are partially, if not completely, responsible for my house burning down a few months ago. I lost everything. I am OK with a good basic knowledge of mechanics, but this has me stumped, pls offer any comments that will help. I am not the only person of my community victimized by our county government. RClark0240@att.net
Question by RClark0240 7 years ago | last reply 7 years ago
I hope my mom doesn't see this, its going to be her birthday gift hopefully ;D. I was looking around instructables for good projects for my garden-loving and food-growing mom, and noticed several hydroponic systems. They all looked nice, but I noticed one thing: they all used the nutrient-film or submerged plant technique. I'm no expert, but this seemed bad for the roots. Rot, anyone? I recalled a system I had seen at Walt Disney World in the distant past (OK, 4 years ago :P), where plants roots passed through a nutrient-laden mist. This seemed a better solution to me, allowing the best nature of hydroponics to take root (no pun intended lol): supplying the roots with nutrients while allowing them to breathe and supporting them. I thought about how to create the mist and it hit me: a hose sprayer. Most sprayers nowadays come with an adjuster nozzle to change the flow, so if one were to move it to "mist" position, tape down the handle and attach it to a large submersible pump on a timer, you have a cheap aeroponics system. I'll be writing an instructable when I can, so stay tuned for updates.
Topic by Rotten194 9 years ago | last reply 8 years ago
I'm building a model to show our museum visitors how convection works related to plate tectonics. (It can also be used for ocean currents.) I'm stuck on the heating source, though, because we cannot have open flames. The model is a cell of water, about 0.5" wide X 10" long X up to 8" high (depending on water depth). I would to implement some type of circuit with a resistor that produces heat at the bottom, and inside the cell, and battery powered. At the top at either end would be ice cubes, to cool the water so it falls back down and recirculates. To see the currents, the ice cubes have blue food coloring, and I use a long pipette to inject coloring at the bottom near our current heat source, and mug of hot water. I'm having trouble finding information on: - what type of resistor (how many ohms?, anything specialized for being submerged?) - how large a battery/ies for a 4-hour day on the floor (rechargeable, of course) - other steps to prevent corrosion It will need an on/off switch and a battery connector, too, of course... I'm sure I may be missing some other important things to consider, too. Any feedback would be great. Thanks~ -Adam-
Topic by adam.blankenbicker 4 years ago | last reply 4 years ago
I would love to try to build a webcam that I can submerge in my pond to transmit video of koi swimming in my pond. My idea is to place a marker outside of my garden pond that someone can scan using Aurasma (augmented reality program for smartphones) and then show a live feed of an underwater camera of the fish swimming in the pond. I thought about simply using a very cheap small usb camera, seal it in a clear waterproof case and run the wire outside the pond. The problem is, I don't want to leave a computer (even a old one) outside running 24-7 to plug into and power source is a bit of an issue even though one outlet may be available. I thought of using a wireless or rechargeable webcam, but i don't want to have to pull it out of the pond constantly to recharge it and i don't think i can transmit far enough for my main computer's wifi to grab the video if it is underwater. Does anyone have any ideas or suggestions? i am trying to do this super-cheap... so want to avoid any costly options...preferably less than $50.
Question by DarkRubyMoon 2 years ago | last reply 2 years ago
Kitewife has just handed me a shiny new copy of Unseen Academicals, by The Man Himself.Back in a few hours...UPDATEI'm back, and here is my favourite passage, which I can also post with spoiling anything:[He] took a sip of his beer. 'I have told this to few people, gentlemen, and I suspect never will again, but one day when I was a young boy on holiday ... I was walking along the bank of a stream when I saw a mother otter with her cubs. A very endearing sight, I am sure you will agree, and even as I watched, the mother otter divd into the water and came up with a plump salmon, which she subdued and dragged on to a half-submerged log. As she ate it, while of course it was still alive, the body split and I remember to this day the sweet pinkness of its roes as they spilled out, much to the delight of the baby otters who scrambled over themselves to feed on the delicacy. One of nature's wonders, gentlemen: mother and children dining on mother and children. And that's when I first learned about evil. It is built into the very nature of the universe. Every world spins in pain. If there is any kind of supreme being, I told myself, it is up to all of us to become his moral superior'.
Topic by Kiteman 9 years ago | last reply 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?
Topic by SolarFlower_org 10 years ago | last reply 9 years ago
I need water level indicators in opaque planting pots filled with LECA (Light Expanded Clay Aggregate) growing medium. The indicator needs to sit down in the LECA to the bottom of the pot with an indicator above the LECA to show how much water is in the bottom and non-viewable portion of the pot. The indicator can be a simple rise and fall system or even electronic, so long as it is low profile and does not harm the plant. The pots are different sizes, so I need a way to make the unit in various heights. Water levels I need to measure include a max level that varies per pot, a low level at about 1/4 or 1/2 an inch of water, and empty. Something that will look nice and not take away from the beauty of the plant is desirable, but functionality is the most important aspect of this project. Hydroculture is also known as static hydroponics. The LECA I am using is Hydroton. With Hydroculture, plants are grown without soil. The Hydroton provides water and nutrients to the plant roots via capillary action and it is important that the maximum water level is just below the roots. The roots are not submerged in hydroculture like they are in hydroponics. Give me your best ideas, creators!
Question by Anianna 8 years ago | last reply 8 years ago
I just made a 3 phase MOT power supply and it's fun to play with (while being safe) but every time I use both phases it trips the breaker after only 2 arcs, sometimes it trips just from plugin it in, I am using a PFC cap on the mains side as well as a long extension cord, I have one of the transformers ballasted, and one of them has 3 MOC's in series on its output, the breaker can handle one of them just fine...for a little while. Is there any thing else I can do besides buying a bigger breaker switch? I'd say mine is 20A but i dont know for sure. Every time I draw arcs from my MOT it heats up really fast really hot, I am using the same setup as above , the only thing I can think of is to submerge it in oil but I dont want to do that because I'll want to make changes to it. What makes it different from a welding transformer in that they are made to draw arcs from but when you draw an arc from a MOT its a direct short and will eventually destroy the transformer?
Question by Jimmy Proton 8 years ago | last reply 3 years ago