Question by ke85974 | last reply
Search for absorber in Topics
I'm doing some research and trying to see if there is anything out there that's a shock absorbent fabric type material. Unfortunately, i've only been able to find sorbothane (which isn't a fabric type material). The usage is going to be an adjustable cover that can wrap around whatever i'm covering and allows impact protection.
Question by themandrius | last reply
Im making a trailer for a longboard (skateboard) with a speaker setup on it weighing around 20kg, the speaker im using for it is a fairly durable plastic mobile DJ style speaker but even so i'll be pulling it around over potentially rough tarmac/asphalt surfaces on a trailer made from skateboard parts so could a couple of small sections of foam sheet sandwiched between skateboard truck baseplates and the deck offer adequate shock absorption? i have squishy 1.5cm thick yoga mat foam or firmer 1cm thick sound proofing foam to choose from...
Topic by ambientvoid | last reply
I'm taking apart a Kodak 4200 projector. The lamp assembly includes a piece of "heat absorbing glass". The manual says not to touch it unless wearing gloves, to keep it covered when out of the projector, and that it may shatter. Being clueless, this sounds spooky. Is it dangerous, or will I just wreck it for projection if I get fingerprints on it? Most glass shatters, but is this going to spontaneously burst into shards? It's not going back into the projector. Is it useful for anything, or should I wrap it in foil and toss it in the garbage?
Question by mole1 | last reply
What's the best metal for absorbing sunlight? ie, darkest. It needs to be immersed in ethanol, which will dissolve pretty much any paint etc. I've tried steel with some kind of enamel or anodised layer, but the eths started eating that too. Also whatever it was seemed to reduce the heat getting into the ethanol. And are there ways of making metal darker, chemically or through heating? I've been recommended getting something rusty and using a rust converter, which turns the oxidised layer into a phosphate, which is dark and might work well. Also.. are there other characteristics I should be paying attention to in order to maximise the amount of heat transferred to the fluid, like conductivity, emissivity, etc? Cheers.
Topic by SolarFlower_org | last reply
Does flat black or high gloss black absorb more heat from the sun?
Question by gdv1939 | last reply
I am looking to use a speaker motor or a high wattage speaker minus the cone to absorb some of the power coming of a tube amp. The setup would be a 4x12 cab rated around 300-400 watts, 120watt tube head, and the speaker motor. I am hoping that the speaker would absorb some of the power and allow me to drive the tube head harder but without blasting the windows out of a building. Power tube saturation is a great sound and not alway easy to get ... even though the cab is capable of handling most of the heads power ... it gets deafening quick. Let me know what you think and feel free to comment if I can explain in further detail. Thank You! AFF
Question by AFF | last reply
Heat absorbtion-gloss black or flat black-which is better?
Question by bwesner | last reply
I would like to know if mixing Sodium polyacrylate with nitic acid or hydrogen peroxide will form a gel-like structure of solid material for disposal.?
Question | last reply
I'm trying to put a multi-purpose platform about 90 feet up a very large tree. The first 25 feet or so from the ground is completely devoid of branches, so I threw a rope around some branches higher and then prusiked up it. However, the throwing-the-rope-up-and-prusiking method will be ineffective higher up, as the dense braches would stop a rope thrown from getting anywhere. So I was thinking that I'd do a via ferrata type system, where I had multiple slings attached to my harness and would attach them progressively to branches as I climbed, so that I could clip in, climb a few feet, clip in again, unclip the previous sling, and repeat this. However, a short fall onto normal webbing or rope would cause serious injury. I looked at buying a via ferrata kit, but the only ones I can find are one-time tear versions. I really don't want to have to pay ~ 100 USD every time I fall, so I was wondering if anyone knew how to make a simple, reusable energy absorber, preferably from webbing, carabiners, etc. (i.e. the kind of stuff the average climber has lying around). Thanks!
Question by mad magoo | last reply
How do I make a support that can absorb as much noise as possible from playing with the DDR dance mat?
I live in a multi-story apartment complex which makes it extremely difficult not to disturb the neighbors.
Question | last reply
I have a question about acid blockers ( prevacid ect...) interacting with acid absorbers ( tums , ect...)? Answered
Is there any problem caused by taking an acid absorber when you are on a prescription for acid blockers ( IE taking tums while on prevacid )
Question by gearhead1951 | last reply
I need this project details : Assume that your photo diode is connected with Micro-controller (any) and micro-controller o/p is displayed in 16*2 LCD. Write a program in Arduino IDE for measuring light response of photo-diode into voltage, absorbance and transmittance. Display these parameters in LCD.
Topic by AyushJ39 | last reply
It's going to be one of those with a box chamber with gathering panels. Should the inside chamber of a solar oven be black, to absorb the heat, or should it be reflective to make sure that the tray and food are the only things that absorb it? What shape should the chamber be?
Question by GigaHertz | last reply
Which are Ecologically friendly Ultraviolet ray blockers/absorbers/stabilizers that can be used in polymer?
Hey, Working on (reinforcement) bio-composite material using bamboo fibers & starch based DIY bio plastic from starch, glycerin, vinegar. I wanted to incorporate UV Protection to my composite by adding UV protective additive in polymer mix. I searched for regular additives (Benzophenone) that are added but I want to find if any Environmentally friendly UV stabilizers are available or can be extracted from natural sources to be used in bioplastic. (chemicals consideration) 1-PABA (p-Amino benzoic acid) & 2-ZnO Please do add your valued opinions.
Question by charmneo | last reply
We had one of those plug in oil room fresheners from Bath and Body works. It tipped over one day while it was on the table and leaked all over my red leather purse. The oil didn't change the color but definately smells strong. I've tried cornstarch to absorb the oil but it doesn't work - it seems that the leather has completely absorbed the oil.
Question | last reply
Okay, so I guess we can all agree that the battery hand gun is dangerous, so this is my plan to make it safer. I'm not sure if it would work though.Any ideas? I would put the pipe #1(original) into a bigger pipe (#2) and then fill the gap with clay to act as a "shock absorber".In theory, the clay would absorb some of the shock, and IF it did explode, the smaller pipe will fly out of the bigger pipe instead.Therfore, it would reduce the chance of the pipe exploding in your hand. What do you think?
Topic by IlluminatedAntichrist | last reply
I have two electromagnets already but they aren't strong enough to really push each other. I've read mixed things online about electromagnets that repel being very weak. I would like to build something like a shock absorber with a electromagnet at each end so when their is a load on the shock absorber the electromagnet can push back and stiffen. Any ideas on this would be awesome, i've spent a lot of hours researching online already but cant seem to find good info. Thanks
Question by chrisack | last reply
My dogs collar always stinks as it is not leather and the fabric it is absorbs all the horrible water.
Question by endeavourkid | last reply
I'm looking for something with a long lifetime that needs little maintenance, and is recyclable. Currently leaning towards "Absorbed Glass Mat" batteries. Has anyone had any issues using those, is there something better out there?
Question by action_owl | last reply
Energy efficient ,waterless Copper stripe based cooling system:The presented Idea is based on Heat exchange principle.As per sketch there will be a conveyor belt system and some copper stripes will be connected with this belt.Each copper strip will have a moveable hook.The conveyor belt will move with a motor.Each copper strip will be separated with each other and with conveyor belt with the help of Insulation (wooden insulation).Each copper strip will be connected with the machine for 15 to 20 seconds to absorb the heat and after that this copper strip will be removed and next copper strip will be ready to absorb the heat.The removed strip will be cooled down after some time and will be ready to couple with the machine again.In this way each copper stripe will work one by one to absorb the heat to cool the machine and each strip will get cool down due to convection .What I thought is that if I use a continuous water jet to cool the motor then the motor will remain cool so if I use the copper stripes then the same effect will be occured.It will work in this way that temperature will be not increased of machine if I couple the device with the machine. It will be low cost,low maintenance,waterless solution to cool the machines. It will consume almost nil energy
Topic by vikram_gupta11 | last reply
So i have these, and I just thought, that since the sub's driver (is that the right term?) is on the bottom, facing the ground, and I have carpet...does the carpet impair the sub? ...Since carpet absorbs sound...Just a thought. Should I put it on top of a piece of plexi glass or something?
Topic by Weissensteinburg | last reply
From Slashdot:12-year-old William Yuan's invention of a highly-efficient, three-dimensional nanotube solar cell for visible and ultraviolet light has won him an award and a $25,000 scholarship from the Davidson Institute for Talent Development. "Current solar cells are flat and can only absorb visible light" Yuan said. 'I came up with an innovative solar cell that absorbs both visible and UV light. My project focused on finding the optimum solar cell to further increase the light absorption and efficiency and design a nanotube for light-electricity conversion efficiency."Much about his young man is eerily similar to many participants here on Instuctables...SlashdotBeaverton Valley Times storyKatu.com story
Topic by gmoon | last reply
In a simple ir module using ir transmiitter and ir receiver to detect an obstacle , why black bodies are not detected ?
I have observed that black objects are not detected as ir rays are absorbed by the black object also the cicuit does not work when sunlight falls on it?how can i solve this problem?? please help ?
Question by sandiri | last reply
The bottom of the pool is the coldest water so why not heat it from there. what would be a good black material that would sink, absorb energy from the sun and transmit it as heat to the surrounding area. would this not create a method of convection current heating?
Question | last reply
The design of the comb is based on Vaccum based system as it will remove dandruff and lice using vaccum system. As per sketch there will be a vaccum pump and a rechargeable battery and both will be installed in the handle of comb. There will be several holes on the teeth of this comb to absorb the dandruff ,dust and lice When the Vaccum pump starts then the teeth of the comb will work to absorb the dandruff ,dust and lice atthe time of using this comb. Just use this comb and dandruff will be removed. Salient features: (1) it is simple to manufacture (2) it will work very effectively (3) it will remove dandruff and dust stick with hair to clean the hair so there is no need to wash the hair.it will also save time and money. (4)there is no need of any chemical as it will work using vaccum (5)The another interesting use of this comb is treatment of "Head Lice"as it will work to remove lice using vaccum. (6) It will be a low cost solution (7) There will be no problem of hair loss as there is no chemical.
Topic by vikram_gupta11 | last reply
This is a new gun I made after finding about Ipod Killer's "innovative" trigger system. It uses Mepain's ram and part of the Burito Master's clip for his scar gun. The clip pushes up the ammo by itself, so all ya gotta do is pull the ram then trigger. It also uses a spring to absorb the shock of the ram.
Topic by mutt256 | last reply
The goal is to reduce speed of my Egg drop contraption but still spinning to keep it accurate.? Basicly its this. 8 blades on a octagon frame then String and then my shock absorbing egg carrier. What way would I want to set my Blades so that it doesn't speed through the air?
Question by noobiefied | last reply
I just purchased a very nice swiss wenger millitary watch that has a genuine leather watchband on it. I wear it all the time, even when i work out and the leather has absorbed quite a lot of sweat and now reeks. I've tried saddle soap and leather cleaner and they both dont get rid of the horrid smell. help?
Question by bobert610 | last reply
Water turns from liquid to gas at 100ºC. Salt water at an even higher temperature.. Sweat absorbs thermic energy from our skin, which cools the skin and allows the sweat to evaporate.. But how does it reach over 100ºC just from the skin and how comes that we can't feel it?
Question by ricardjorg | last reply
Hi, I have a cabin air filter in my car. Toyota sells activated carbon filters that helps absorb odours, but not for my model car. i was wondering if its possible to impregnate the filter with activated carbon / activated charcoal myself somehow? thanks for any ideas!
Topic by hoobyjuice
Hello! I love to do amigurumi, but I've noticed that stuffing is very expensive. I'm looking for new way to stuff my amigurumi. I've already had used: stuffing soft polyester fibre mattress and pillow wool absorbent cotton balls of old wool (almost run out of these :D) Any other ideas? I'm looking for a way to make stuffing out of rags. Thanks :)
Question by MicioGatta | last reply
I know this is a basic question, but it has bugged me, and is in two parts. The first: Are resistors like reduction valves for electricity? i.e. Do they simply absorb and dissipate excess electricity, or do they restrict its flow, as in making a large capacitor discharge its energy through a resistor to prolong output from the capacitor? Also, do capacitors store electricity until it is full, then release it, or is that only when they fail? Thanks!
Question by mad magoo | last reply
I'm fat myself, so I can't see how this could offend anyone. That said, the design I was thinking of would be similar to the back support brace/slings that pregnant women wear. It would also have velcro attachments for additional things like an absorbant pad for "underneath." Are there any designs/projects here on this site for similar items? Any help would be appreciated.
Question by javajunkie1976 | last reply
I have a one-hour commute on the city bus to work. I would like to work on my laptop, but cannot stablize it in my lap during the bumpy ride. How can I build a small portable tray that can hook to the seat in front of me, with vibration suppression (rubber shock absorbers)?
Question | last reply
Has anyone noticed that new clothes and things like washcloths and dishtowels seem to repel water when they get wet? Not really repel, but they don't absorb it, and the surface stays (and feels) wet.After the clothes get washed a couple hundred times, it wears off and is like old clothes.Can anyone tell me why this is happening (and why manufacturers decided to do this)?
Topic by Bran | last reply
Hi there, I'm designing a vaping device which is Li-Ion battery powered and uses standard e-liquids (propylene glycol / vegetable glycol). The liquid would evaporate around 200 celsius and the heating element should attain this temperature within 1 second. Current methods use a coil with a liquid absorbing wire, which is not durable nor easy to reuse. I've been looking into ceramic heating elements but it's a forest of options out there, most of them becoming waaaaay to hot and/or needing a much higher voltage than a standaard Li-ion battery would provide at around 1100 Mah. So i've been thinking of building one, or having a prototype built for me. Problem is, i'm not 100% sure that a ceramic method would be the best way (so many options). Around the ceramic element (or on top if it is in disc form), i'd place a replaceable sock that can absorb the fluid and withstand excess heat (better than the standard kanthal / ekowool / etc.). This way the end user would only need to replace a sock after some time (for instance when changing fluids). It would also not burn and contaminate the liquid like current system do. Anybody have an idea? Regards, Bert
Question by bertbeukema | last reply
I have long heard about using buried tubes/pipes to use as a heat exchanger to take the hottter air from your house, blow it through a system of closed loop underground pipes in order to use the earth mass as a heat exchanger. The earth mass removes/absorbes heat from the house air in the pipes and delivers cooled air back into the house. Can anyone direct me to web sites about this subject. Or, certainly, if you have knowledge about this, reply to me with it? Thank you, John333
Question by john333 | last reply
Well, I have some cork place mats that are lounging around and also have tons of useless old CDs, so I was wondering about making an instructable for CD coasters. I know that Im going to cut out circles of the cork and put the CDs on them then....but what should I do the CDs before I glue them on? Should I microwave them? Should I paint them? Should I shatter the CDs and then glue them on? How good are CDs at absorbing heat? Just some of my burning questions.
Topic by Zippy_Pyromaniac | last reply
For a while now i have been working on an rc car from almost scratch. i picked up a nice car for this on the clearance rack for $10, it already had a gearbox, but no gears. This was a pushtoy, after all. abyways, i found gears and filled the gearbox. will this setup of gears work well for speed in my car? or will there be more torque? for the best speed, what does my setup have to be like? (im using a high rpm motor, but not the one in the picture, the one in the picture absorbs way too much current)
Question by zack247 | last reply
can sodium nitrate be used to make a cotton string fuse that will not go out after i blow out like a gun powder fuse? Answered
I will soon make soidium nitrate but a instructable said it will absorb water and become useless qquickly so im going to plan ahead, i will make it into a fuse to ignite hydrogen balloons i let into the air for fun , the methanol string fuse keeps going out and a whole hydrogen balloon takes 12 minutes to inflate, like i sqaid im planing ahead
Question by oldmanbeefjerky | last reply
How could I sound proof my room? Particularly against the "bass" end of the spectrum? I know you can use foam panels that are cheap enough but would they also help absorb the bass too? I'm getting tired of my parents yelling at me whenever I play music. I don't nessesarily play it loud, but with my subwoofer on, it goes low enough to rattle through the whole house even at low levels. I'd like to make this a competition, the best idea I will pick out and do to my room, I may even think of a prize.
Topic by Punkguyta | last reply
Alright, well the mountain pine beetle is really eating up a ton of forests, and it's releasing a LOT of Co2 into the air. So I decided, since new trees would just get destroyed by the pine beetle again, why not find a crop (Preferably edible, inedible is just as good) that absorbs the most Co2 in the world (Next to trees). Basically, I'm looking to offset the Co2 that's being released in the forest by growing another crop. Once all the forests are destroyed, the pinebeetle population will die down, and we can replant the forests. Any suggestions?
Topic by A good name | last reply
I want to drive a 5Kw Steam Turbin from fresnel lens I have Patent pending but need to know how the magic works Answered
Does anyone know .. how much water the ST would take for 5 Kw out put? how big the Fresnel lens needs to be if using heat covector. I know water does not absorbe suns radiation quickly so using a heat convector of some type... curent design ST weighs over 1 ton ...this is small ST as possible for 5 Kw out put.
Question by bashers | last reply
How to test for nickel levels in soil, water and plant based food? Allergy sufferer needs serious help.?
I have an allergy to nickel. It causes severe blisters so I must avoid it at all costs. Unfortunately, nickel is present in soil and water at varying levels and is absorbed by all plant based foods. There is some literature out there that lists which foods are worse, but are vague at best, and simply avoiding all plant based foods is not a realistic option. I would like to know if there is a way to test soil and water for nickel and determine how much is present? Or is there a way to test plant based foods for the nickel levels they have absorbed? I have researched this extensively and can only find information about getting tested for metals within the body. Confirming this would not change my dilemma. I have to work diligently at avoiding any further exposure to nickel as I understand there is no way of removing this metal once it is ingested. I have seen many specialists and their help is not only expensive, but limited (due to a lack of research in this area). Any help or advice would be greatly appreciated. If anyone needs reference material regarding nickel in soil, water and plant based food should Read This from Ohio State University.
Question by canucksgirl | last reply
I have my own leydon are and it isn't very big but I make huge shocks by charging it will my wool blanket. I tested ways to make it stronger and used a spring coiled which made it absorb more electricity and allowed me to shock people with a steady current without them touching the positive. I head something about the ball and magnet and I wanted to know what it is all about and how it makes it stronger or if it makes it collect static better or what plz answer.
Question by ElectroManiac | last reply