Keeping the environment moist or damp

I'm building an aeroponics system from scratch. When I water my roots in bursts of 3 to 5 minutes how can I be sure that the environment stays moist while I am away, I don't want the roots on my capsicum annuum to dry out. Is there anything I can line my 4" PVC tube with to keep it damp inside but without using soil or any geological material or perhaps and organic material that wont damage the cycle? Is this what aggregate is used for?

Topic by bprins 4 years ago  |  last reply 3 years ago


Fungus problem? Answered

I have a small 5 gallon aquarium in a cupboard and there is fungus all around the wood in the cupboard! How do I stop this fungus from growing there. I also have a big aquarium for almost 5 years now whose hood is always very damp, but never had fungus on it. Anyone knows why this is happening with the small one?(And there is no difference in placing. They are both side by side)

Question by Ahtasham Ahmad Mohtashim 5 years ago  |  last reply 5 years ago


Mold? Fungus? Anyone know what this stuff is? Answered

I have a small fire safe I use for storing documents and backup drives.  Yesterday I opened it to find this stuff growing on the inside.  It has a crunchy outer texture that crumbles if you touch it, and a bit of liquid inside.  It wasn't there two months ago when I last opened the safe, and I've never had problems with it in the year I've owned the safe.  I have moisture absorbers inside, and live in a dry climate.  Any ideas what this could be, and whether I can just wipe it down with cleaner or need to take stronger measure?  Thanks.

Question by El Mano 1 year ago  |  last reply 1 year ago


too much damp.....dehumidifier has anyone made one?

I'm thinking of building a dehumidifier to deal with aspace of 120 cubic metres has anyone done one and can you give any guidance...... i searched on here and all i found was an instructable to build a bass fiddle?

Question by trapper23 5 years ago  |  last reply 5 years ago


How can I get rid of the smell of damp concrete in my studio?

I have been working without success on the smell in my 12' x 14' studio for 5 months, so I really hope someone can help me. I can put my nose right up to the walls and the ceiling and the outlets and not smell anything. But when I put my nose right to the floor I smell the dank, musty, yucky smell of damp, dank concrete. The place reeks of it, I can't work in it. I smelled it last October when I was looking to buy the house, I told the inspector about it but he could not smell anything. Everyone can smell something when they open the door, some people can tolerate it but I can't. As soon as you open the door it just overwhelms you. What I have done so far: 1. Had two peg board walls removed and replaced with chipboard, because that was what the other walls were made of. I had assumed at that time that the smell was mold coming from the pegboard. At that time I looked at the insulation inside the studs and it was fine. It smelled so good with that new chip board up that I thought the problem had been solved. 2. In preparation for painting I caulked the ceiling, around the windows, and up against the floors where it meets the walls. 3. Painted 3 coats of Kills primer on all the walls. 4. Painted 2 coats of very good quality semi-gloss paint on all the walls. 5. I scraped off all of the existing paint that was on the floor. It was peeling in places which is what led me to think the smell was coming from the concrete. 6. Washed the floor with a de-greaser. 7. Washed the floor with sulphuric acid, and rinsed it about 30 times. 8. Painted the floor with 3 coats of special paint made for concrete basements to act as a waterproofer. 9. Painted 2 coats of sealer on top. 10. I called the previous owner who confirmed that the studio's monolithic slab was poured without a vapor barrier because code didn't call for it, because no one was going to spend the night there or live in it. He never noticed the smell. 11. In all this time I have run the A/C non-stop, with the windows open, with the windows closed, with no effect. I have even run the heater for a few days. I have cleaned the A/C over and over, there is nothing to clean and the smell is not coming from there. Is there anything I can put on the floor to effectively seal the smell from getting into the air? Why didn't all those coats of concrete paint and sealer do it?

Topic by Ninzerbean 6 years ago  |  last reply 1 year ago


Calcium Chloride Corrosive Effects

I know that calcium chloride can corrode metal, but does it require direct contact or can it generate fumes that could corrode?   Here's the issue:  I have a wood stove and I place a container of Damp Rid inside over the summer to absorb moisture.  It looks like the Damp Rid plastic container had a small crack, so moisture passed through the calcium chloride and through the container and through the back of the stove After a while I noticed a pool of water behind the stove.  I traced the problem back to the Damp Rid container, cleaned up the moisture inside and outside the stove, and replaced the Damp Rid.  At the same time I noticed areas all over the exterior of the stove where the finish was coming off, areas that were not in contact with the water.  In fact, at least one section of the stove that had direct contact shows no sign of  a problem. I'm trying to discover if the calcium chloride caused the problem, or if it's something else causing the damage.

Topic by corgaff 7 years ago


Is it possible to reflect northern light from the front of your property into a south facing backyard??

The backyard is dark and damp and the front of the house facing the street is bright and sunny. Can you reflect the front sun into the back yard

Question by 9 years ago  |  last reply 9 years ago


Remove Juice Stain, Carpet

Something Red. Still fresh.  I have damp towels on it now. I have a shop vac. Ive read about mixing peroxide with soap. What soap, specifically? Other tips?

Topic by Toga_Dan 3 years ago  |  last reply 3 years ago


How to clean hazy clear plastic iPod cover? Answered

Is there any way to remove the haze from this Belkin iPod arm band?  It is a clear, soft plastic.  I tried using a tiny bit of soap on a damp paper towel and that did nothing.

Question by rachl009 6 years ago  |  last reply 5 years ago


What methods allow wood glue to seep into basswood better?

Hi Everyone! I am currently working on a Basswood bridge project and my initial testing came to conclude that failure of my bridge was due to break joints! i took a look at the joints and the glue and these locations had barely seeped into the wood enough that it eventually broke off from weakness! I am aiming for my bridge to break within the sections and NOT at the joints. Are there metods like baking? soaking? the wood and glue so that the glue can seep in better? Specifics too please! I have seen people soak it, or "damp" i should say. But I have no clue how much to damp it or any of that! Acetone came up too.... not to sure though, how does this even work?! -Thanks noobie

Question by noobiefied 8 years ago  |  last reply 8 years ago


Combo- Locktight / Lube/ Corrosion protection

Stuff like lugnuts... sometimes exposed to damp for years. then, the one time in yrs u havta loosen it, maybe it's rusted.  AND youre in the middle of nowhere without many tools. So. Is it bad to put oil on those spots? Dont want em vibrating loose. But that would protect against corrosion and permanent seizing. Best practice?

Topic by Toga_Dan 2 years ago  |  last reply 2 years ago


Crushed stone dehumidifier?

We have a house in Maine and when we bought it there was a big built-in box in the basement 3' X 8' by 4' tall filled with crushed stone.  It is huge.  It has an electric fan that pulls air down through the stone and pipes it upstairs to a sun porch.  Unfortunately the fan has never worked for us so we are unable to "test" the system.  This basement does get damp in the spring and we would like confirmation that this is probably a home-made dehumidifier.  What do you think? 

Question by LaurieM39 2 years ago  |  last reply 2 years ago


Is there something I can put on my vintage fabric books to make them look brighter and healthier?

Is there something I can put on my vintage fabric books to make them look brighter and healthier? I have some vintage books that I want to clean. I tried a damp wash cloth and it took off some of the color. I just want them to look brighter and cleaner. Please only answer this if you have hands on experience with books. 

Question by threadbare 9 years ago  |  last reply 6 years ago


Which poteniometer for 8 ohm speaker into TEAC AG-980 Amp?

Hi there, I have this 65W amp hooked up to two pairs of JBL Control Ones (8 Ohm) and one Fenword 8 Ohm Speaker. This uses A/B/C/D with the amp's multi zone function. The Fenford is in our bathroom area (it's a small gym) and I want to attentuate the volume just for this speaker. Any idea which potentiometer I can solder onto the cable to damp the volume?

Question by bowlerboy1973 1 year ago  |  last reply 1 year ago


The Robot goes to Peru

I wore my Instructables shirt while on a trip to Peru at Machu Picchu. I washed it in the bathroom sink the night before and when i put it on the the morning it was still quite damp. Didn't matter because i was rained on while hiking down from Wayna Picchu (the mountain in the background of the main picture). I had my rain jacket but the cool rain felt great. In a little less than two weeks i'll try and wear my shirt on the equator too!

Topic by zieak 10 years ago  |  last reply 7 years ago


How do you preserve bark on rustic wood projects.

We are building a fireplace mantle of oak milled from one of our trees 7 years ago.  We would like to leave the bark on the out facing side of our project.  Will epoxy suffice?  we bought a "pourable" type of coating like we have seen on some bar tops.  Will the bark fall off after a number of years?  It hasn't in 7 years in an unheated, somewhat damp barn.  Any help is appreciated.  Thank you!

Question by TerryandElaine 9 years ago  |  last reply 9 years ago


My paper slicer got warped in a hot car (16"*16" plastic platform with bladed swing arm). Can I un-warp it in my oven? Answered

The same day a lighter wrapped in leather exploded (ripping through the leather), a credit card got Dali-clock-afied, and... so on. the paper slicer is made of thick hard plastic, more like pvc than rubbermade... I was thinking I could set my oven on low and put a damp cloth in a sheet pan and then put the slicer on top of that. What do you think?

Question by LivingDread 9 years ago  |  last reply 9 years ago


Restore Painted Letters on Keyboard Keys

White dry transfer letters can be purchased from: http://www.ebay.com/itm/Woodland-Scenics-Railroad-Gothic-Letters-Whit-WOODT507-/130726408706?pt=Model_RR_Trains&hash;=item1e6fe6b202#ht_3538wt_785 for $6.67. The letters are typically used in model railroading. Clean the keyboard keys with a mild cleaner on a damp cloth. Wipe dry. Remove any partial letters with a pencil or ballpoint pen eraser. Apply the letters to the keys per the instructions on the package. A dull pencil works well. Lightly coat the key with clear nail polish. Should look like new and will last longer than the original.

Topic by rwemerson 6 years ago  |  last reply 6 years ago


My phone has gotten a little wet. How do i save it?

My Samsung Solstice has gotten a little damp and the keys are sticking (such as the power button and the unlock/lock button), and it cuts itself on and off......what do i do? Ive tried taking the battery out and letting it air dry but it continues.  It also freezes up when i charge it.  Do i need a new shell for the phone or is the power button shorting?

Question by smaLUVSjnw 8 years ago  |  last reply 8 years ago


Oil used for boots

I've had my pair of Danner boots for 5 years, going on six. I do everything in them, hiking, welding, motorcycle riding,  only taking them off to go to sleep, so they get alot of abuse. I use Mink oil on mine, heating them up a little from the inside then applying the oil. Of course I clean them off first with a damp rag and a little bit of soap if needed. I've had my Danners re-soled once so far and had a few seams re-sewn. Who knows how long they'll last. They have a little crack where they get toe creased but other than that they're great. 

Topic by iwelder43 6 years ago  |  last reply 6 years ago


Stains: specifically, how to remove MUSTARD stains

I have JUST NOW dumped an entire sardine (in mustard sauce) onto my white work shirt while having my meal at work, and the standard "damp cold water on a paper towel and a dry one underneath dabbing like crazy, didn't work. I know there are commercial stain removers out there, but I would love to have a small bottle of something easy to make (or just something that needs no alteration, but does the job) handy for such incidences. Any ideas? (I DID do a google search, but would LOVE to know if any of the ideas worked for anyone personally; ;-)

Topic by Goodhart 9 years ago  |  last reply 3 years ago


What substance should I use for this?

I need to figure out what to use for a certain application.  It needs to have small particles, say the size of large glitter flakes, sand, styrofoam balls, or those tiny glass beads without holes that people glue onto ornaments. I'd prefer if it could pile up a bit like damp sand... not too high, 1/2 inch max is all I need.  I need it to not rot or deteriorate in a closed container for an extended period of time, and I need it to not attract a charge over time and cling to the sides of the container (like glitter and styrofoam balls do). I need to be able to push it around easily if, for example, I dragged my finger through a pan of it. I need it to be white or clear.

Question by supersoftdrink 8 years ago  |  last reply 8 years ago


Wireless water level indicator?

I have a tank that's above my 2 story house. I did use a 50 foot Ethernet cable and wire up a level indicator, with 5 levels from empty to full. But the wires always corroded, and it just stopped working. What i'am looking for is a way, to do the same wirelessly. Maybe even automate via ifttt, as my motor is connected to a smart plug the HS100. How can i accomplish this, the tank is open to the elements, so something waterproof, and solar/battery operated would be great. I did think of the Xiaomi Water sensor, which generally checks for dampness,but that needs a Xiaomi gateway, so what does the community suggest? 

Question by TalkingStuffN 1 year ago  |  last reply 1 year ago


Spinning Skyscraper + Damper Ball

For the civil engineers out there, check out this daring piece of architecture: a tower whose floors are independent and can turn on voice command. Each floor is built pre-fabricated off-site and then attached to the tower, and the building creates its own energy using wind turbines and solar power. Of course, for the building to look as smooth as it does below, you'll have to ask all of your neighbors to turn their houses or offices just so.Link via GizmodoOn the subject of skyscrapers, there's more--an insight into how the Taipei 101, the world's second tallest building (at the moment), survived the May earthquake in Sichuan, China. The building uses a 728-ton ball, suspended between five floors in the upper part of the tower, to damp vibrations from high winds or ground tremors. You can watch a video of the damper ball moving during the earthquake here.Link via Gizmodo and Deputy Dog

Topic by joshf 10 years ago  |  last reply 10 years ago


VACUUM CHAMBER for DRYING ELECTRONICS

Some time back, it occurred to me that a sufficiently strong vacuum would be useful for drying wet electronics. After all, water boils at lower temps at higher elevations, and in space, water will even boil at 33F ( 1 C) Freeze-drying coffee is another example of using high vacuum to desicate stuff. I hooked up a vacuum pump which had been marketed for bleeding hydraulic brakes and clutches to a pressure chamber for extending the life of tennis balls.  It did not seem to work when I tried rapid drying a damp paper towel. Indeed, my control, another paper towel left out at room temps dried before the one in the vacuum chamber. I think I've heard of repurposing a refrigeration pump to act as a vac-pump. Someday, I may try that, but would prefer not to have to deal with the freon. Besides that, if someone is scrapping a fridge, and I can pick it up free, will the pump be any good?

Topic by Toga_Dan 5 years ago  |  last reply 4 years ago


Short range radio pulse transmitter design?

I need something simple to transmit pulses 2-3 meters to a receiver The transmitter will output a pulse every few seconds, transmit a small burst at X frequency. The receiver then outputs a short high pulse/outputs high for the duration of the received pulse. I want this to be as simple as it can possibly be, cost being the primary restriction and power usage being also of fairly high importance, so please no suggestions of Bluetooth or xbee type systems. It does not have to be a radio based system, however it needs to work without line of sight and of course without connecting wires. If it helps the overall aim is a 'safety signal' that will set of an alarm at the receiving end if several pulses are missed Anyone? EDIT: To clarify I am looking for simple, like really simple. So the transmitter is just a resonator and antenna. What I need is a simple receiver that will respond to a specific frequency, on or off. Does such a thing exist? 

Question by Damp Cuttlefish 6 years ago  |  last reply 2 years ago


PLEASE help....smelly basement storage space between units

I have been trying to get RID of a smell with no success. The smell is in a shared closet space between my unit and another unit in a basement (duplexed down units with first floor above grade).  The smell is so damp and musty and just terrible.  This is true especially in the summer.  I want to sell this place, but people have been opening this shared closet and are immediately like what the heck!  I have noticed it all along, but in the winter it is faint.  My spouse says he did not notice it, but at least 30 potential buyers were not okay with it and noticed it in the Summer...no one really commented in the winter, but I always smelled something. We put in a dehumidifier which we empty every single day because it is full (see in picture the type of dehumidifier), but we cannot for the life of figure out where the moisture is coming from.  One person told us it was likely coming out of the floor....I have no idea if this is the case...it almost looks like plywood is on the floor.  I guess this would be a subfloor?  In one of the pictures, it shows where the door opens to this shared space right out of our den.  I am at my wits end trying to figure this out.  I have tried essential oils, carbon, baking soda, the dehumidifier (which feels completely up in one day).  It is closed off in the closet and there is no window or any way for the smell to get out unless we open the doors to our unit and then the units smell!  We cannot smell it at all in either unit with the door closed.  It is sooooo bizarre.  These units are duplexed down to the basement.  It is absolutely puzzling me and has kept us from selling our unit after a winter deal fell through.  When we started showing in the summer, the smell was so strong as it usually is in the summer.  I guess we never paid attention because we never go in there unless getting something from storage.  Can someone tell me what I can do and what type of floor this is?  It kind of looks like it has gray paint on it, but it is certainly some type of wood or a material like it. Should we get someone to rip the floor up? Why is the smell not in either unit?  Please help!

Topic by CareBearie 2 years ago  |  last reply 2 years ago


The Star Trek Home

There's the technology today to produce most of the comedies seen in star trek, not just the original series. I'm talking the TNG or DS9. The automatic sliding doors are seen in almost every supermarket. You would install them with steel or aluminum doors with the design seen on the shows. Come badges could be produced. The only problem would be wearing a cellphone sized device somewhere on your body. The hypo spray could be developed with our technology, we use syringes more often. The technology in hyposprays was used in mass vachination machines. I'm sure it could be miniaturized. Isolinear chips compare to memory sicks or SD cards of today. One could install touchscreen monitors throughout one's house linked to a central computer. Microphones and speaker hidden throughout the house could provide the voice access like seen in star trek. Al though you might want to upgrade their authorization code method. It's horribly insecure. A PADD could be a tablet pc or kindle. It uses induction charging, something that could be incorporated or built in using today's technology. The "laptop" used in readyrooms could be a laptop. The facebook video message system shows how the star trek messages could be transferred. Skype could be used as transmissions. A giant monitor could serve as a view screen. A replicator is hard to do with today's technology, but we have machines that can produce drinks. We don't have phasers, but current day guns are as good as them in stopping power, and they can't be damped by damping fields. Torpedoes in Star Trek  are just like air to air missiles in the sky or normal torpedoes in the sea. Jefferies tubes could be installed in one's home if you wanted it to.  Next are somethings that aren't as good as the ones in star trek. Our medical technology isn't as advanced. Tricorders could be iphones modified a bit with radar and other technology. They wouldn't be the same quality as the ones in star trek.  A holodeck could be simulated with virtual reality machines, movie theater, video games, and a 3-d holographic projector. They would be most of the uses a holodeck is used for. There are somethings we don't have that is seen frequently in star trek. Transporters and Warp Drive are chief among them. In some ways though, we have surpassed the technology seen in star trek. Touchscreens are a prime example. Instead of the unchangeable interfaces we see in the bridge, we could put touch screens in all of the consoles. 

Topic by starwing123 9 years ago  |  last reply 7 years ago


Estimating torque on microscope stage

Hello,I am involved in a project, based on the technologie used in microscope stages. https://www.ebay.com/itm/Olympus-Mechanical-Microscope-Stage-w-Specimen-Holder-From-Model-BH2/123699351875?hash=item1ccd0e5143:g:Hs4AAOSw0TpckTT2These have an X and Y axis which can move independently and are driven by rack and pinion gear, controlled by a translation unit with two knobs. The consistency of the grease used in the shafts that connect the knobs with the gear generates great damping and resistence when the stage is moved, so that the movement is nicely smooth and slow. I am not a technician/engineer but a designer and know nothing about torque. I need to know the torque that is generated by this sort of system, especially when the stage is moved BY HAND, so not using the knobs. I would be interested in the minimum and maximum torque that is generated when pushing the stage by hand.I am thinking of using a slip clutch/torque limiter to replace the translation unit, because I don't want to depend on grease. That is why I need to know the torque. Anyway, maybe somebody on this forum has a better idea. I'm all open.Thanks,Rob

Question by butterflies55555 19 days ago  |  last reply 18 days ago


Capacitor quick question: (Dissipation factor vs ESR?)

I want a decent small capacitor that is suitable for "high power resonant circuits." On the osciloscope, the waveform looks like 2 well rounded humps, one that is skinny and tall and one shortly following that is shorter but longer, and this is periodic at 30KHz. UPDATE: looking at the waveform closer, it is clearly a damped ringing that is a bit trimmed. The screenshot is uploaded. The maximum measured slew rate was about 25.5MV/S, (which is 25.5V/uS, right?) for a "perfect" 1uF capacitor, that is a peak current of 25.5A! I am unsure of the RMS current due to the non-sinusoidal nature of this waveform. But it must be pretty high as well, explaining why my 3, 1cm diameter 3cm long 0.47uF MMC film capacitors get pretty warm.   . Why do some film capacitor datasheets only give dissipation factor ratings at a few test frequencies (like 10KHz and 100KHz) and others give ESR ratings as well? . Based on what I googled, I figured out dissipation factor is the ratio of ESR to the capacitive reactance. And since the frequency and capacitance is given it is not hard to calculate the ESR. So then why is this not conveniently already listed on the datasheet? Is it because the dissipation factor is what is directly measured? (like the total measured impedance of the capacitor at a certain test frequency)

Question by -max- 2 years ago  |  last reply 2 years ago


Growing Grub

Here in France we suffer a lot with doryphores (Colorado Beetle). For the last few years I have grown my potatoes in straw which does seem to have reduced the number of beetles I've had to put up with. 1) A week or so before planting time (or, if you want to try and conserve water do this in winter), break open a few bales of straw and lay the wedges - tightly together - over your spud patch. 2) Soak for several days until saturated. (if doing over winter then forget this stage. The rain will do it for you) 3) Lay seed spuds over the soaked wedges and cover with loose straw. As the spuds grow just "earth up" with more loose straw 4) From time to time check the bottom is still damp. Water if required. I find that I rarely have to water 5)To harvest, or if you want just a few New Spuds, lift the loose straw and take what is wanted. 6) After all the spuds have been harvested you can either leave the straw in situ and re-use next year, dig it into the ground or move to a manure/compost heap to finish rotting down. Sorry I haven't got any pics. I didn't think of taking any as I've used this method for a few years and I've also broken my camera when I had a fall. Haz

Topic by Hazel Twig 9 years ago  |  last reply 9 years ago


how to modify a twin window fan for easy cleaning

Hi, I was given a twin window fan which works just fine but is dirty (dirt and a fair number of ex-gnats).  The manual is no help as it says to wipe the exterior with a damp cloth.  I thought it would be a simple job to just take out the 12 screws holding the two halves together but unfortunately the off-high-low levers (one on each side) are preventing me from separating the two halves.  I can't see any screws holding the lever mechanism in.  I tried rotating one side 90 degrees to see if I could slide the lever out through it's slot but it's too fat. I've had other twin window fans with the same set up and never could get them opened up.  It annoys me that the manufacturers make it so difficult to clean these fans.  I think a fair number of people have this problem and just give up as the local thrift store gets these fans in all the time.  I'm thinking of using my dremel with the cutting wheel and somehow slice off the lever knob.  It would mean we would have a shorter lever on one side but we can live with that.  The lever is kind of wobbly and I'm trying to figure out how to hold it steady without having my fingers so close to the cutting wheel. I know this is a really small problem but it really bugs me that something that should be so easy is difficult.. I'd appreciate any suggestions. 

Topic by Lucycollie 7 years ago  |  last reply 7 years ago


Fungal Fun: What are these small blue slimy wild mushrooms? And what about these big red buddies? And these...?

Small Blue Slimy Mushrooms?  Found these blue mushrooms peeking out from under damp, decomposing fallen foliage and such, behind our shed (location: Vermont).  These were maybe less than 2" tall, and they were slimy (sorta "doctored" the photo by carefully brushing away debris including pine needles that were sticking to the mushroom tops).  They're so cute!  Big Red "Ugly" Mushrooms?And while I'm at it with asking a mushroom related question, what are these big red ugly buddies?  They were found right nearby the blue babies above, but were growing off of a mossy tree stump.Wavy White/Brown Mushrooms?And while we're at the stump, what's this neat wavy growth?  It was on the top of this particular stump.White Fungal Growth?And again, with the stump, on the eastern side of it was this white fungal growth that I don't know what is either.Thought I'd include a photo of all the above discoveries together, since they in fact were found in just the same area.Giant Face-Sized Mushroom?This photo was taken two years ago, but since I'm asking all these mushroom related questions, thought I'd spew them all out.  So, what's this giant/face-sized one?Location for all this fungal fun is rural northern Vermont.  Having a hard time searching online, and just was hoping I might get lucky like last time with my asking about the dog puke fungus and green slime identification.  There's just so many neat things outside! :-)

Question by Pompom 9 years ago  |  last reply 8 years ago


Soldering Help? Answered

So i recently got a 40 watt weller soldering iron. This is my first soldering iron ever, and i have watched many instructional videos and tips on how to use it. I had a bit of trouble tinning the tip but i got the hang of it. I am using Rosin Core Solder btw. Today i went to go practice my soldering a bit, so i plugged in my soldering iron and waited for it to heat up. Once i heated it up i got a damp sponge and i wiped off the old solder. IIRC i wiped it off and then tryed to tin the tip again, but i saw my tip has turned black. I tried to tin it, but the solder just turned into a ball and rolled off the tip, as if the tip was oil and the solder was water. I tried taking off what i presumed was oxidation by cleaning it with the sponge, mr. cleans magic eraser, and my last resort was a nail filer. MR cleans magic eraser turned the oxidation a grayish blue, but the nail filer was the only thing that took off all the oxidation. (i know that any sort of abrasive thing shouldn't be used, but i was angry and confused). I felt pretty happy, but as soon as i put solder on the tip, the tip immediately turned black and the solder rolled off again, making tinning impossible. I tried re tinning my spare chisel tip too and it wasnt so bad, but the solder just rolled off too. Now all i have left is a tinned "mini chisel" tip that im scared to use because i dont want to mess up what i have left. Is there something im doing wrong? I could really use some help.

Question by jaguilar16 5 years ago  |  last reply 5 years ago


pygmy tarsiers found alive in Indonesia!

Fox news " Mouse-sized primates called pygmy tarsiers, not seen alive in 85 years, have come out of hiding from a mountaintop in a cloud forest in Indonesia. Weighing just 2 ounces (57 grams), they resemble mini-gremlin creatures, as they have big eyes and are covered in dense coats of fur to keep warm in a damp, chilly habitat. Unlike most other primates that sport fingernails, pygmy tarsiers have claws, which scientists say might be an adaptation to grasping onto moss-covered trees. The recent sighting has conservation implications. And researchers said they hope that with new information about where the species lives, the Indonesian government will protect them from the encroaching development occurring in the animals' home range. Hide-n-seek The last sighting of this primate alive was in 1921 when live specimens were collected and processed for a museum collection. Decades went by without another sighting. And scientists thought the pygmy tarsier (Tarsius pumilus) had possibly gone extinct. Then, in 2000, two Indonesian scientists who were trapping rats on Mt. Rore Katimbo in Lore Lindu National Park in Central Sulawesi, Indonesia, reported they had accidentally trapped and killed a pygmy tarsier. So Sharon Gursky-Doyen of Texas A&M University and her grad student Nanda Grow, along with a group of Indonesian locals, went looking for the teacup-sized primates on that same mountaintop. This past summer, the team trapped two males and a female. They placed radio collars on the animals for tracking. Since pygmy tarsiers can turn their heads 180 degrees, this process can be dangerous, as Gursky-Doyen found out. "I have the dubious honor of being the only person in the world to have been bitten by [a pygmy tarsier]," Gursky-Doyen told LiveScience. "My field assistant was holding the tarsier and I was attaching a radio collar around its neck and while I was attaching the radio collar he bit me [on the finger]." The female has since been eaten by a hawk, Gursky-Doyen said.

Topic by astrozombies138 10 years ago  |  last reply 10 years ago


using calcium chloride as humidity reducer closets /laundry rooms

I bought a product called "damp rid "in a hardware store that was used for removing moisture from hamper area,laundry rooms, to prevent mildew. i realized the pelted looked familiar and it was calcium chloride. i want to make my own as i have access to a big bag of calcium chloride. it looks like there is a piece of tyvek/ or other moisture passing membrane on one side of the top upper half, the other 3 sides of the bag look like a mylar  type bag.  The seams all seam to be sealed, except the top has a piece of plastic snapped-sea;ed over it, with a couple very small holes that go into the top half of the bag. the top plastic piece  also has a hanger  loop.. when i bought it the calcium chloride was in the top hang and the bottom half was empty. There looks like a plastic seam weld separating the calcium from the bottom half, and i noticed that are a couple 1/4 inch gaps in the seam. the calcium, chloride draws the moisture out of the air and turns it into water, which falls to the bottom half of the bag.pretty cool device, and seems i t would be able to make, if i can find a source for mylar or whatever this material is. i would also have to make the seams, not sure if glue would work, maybe make a clamp like device , rather than the welds, this way i could just empty the water and replace the calcium chloride, no reason to throw it out. anyone seen these devices, i noticed they have a www with the same name, they may have pictures.  Also looking for a source for mylar and tyvek.  I am not sure if the postal envelopes would work, i would also like to scrounge a sheet of tyvek to use as a ground-cloth or emergency shelter when out on my bicycle and the t storms hit. i haven't seen it except in big rolls, i guess i should keep a lookout for construction sites trash areas.otherwise i am not sure where  i could get a 10 ft piece. i will take the bag apart later to dissect the workings and see if i can measure the thickness of the  mylar

Topic by escapefromyonkers 8 years ago  |  last reply 4 years ago


Advice on A centrifugal pump.

Hello, I recently was given a pet from a friend and after doing some research on what the little guy needs I came to the understanding that the current enclosure he is in is inadequate for his needs. Therefore, I wanted to save up some cash to get him the right size tank set up that I know he deserves. In the meantime though, I have plenty of things laying around the house that I feel could render him a more comfortable habitat till that investment goes through. After more research on the matter, I came to find that for most household aquariums, the bulk of the work falls on your filtration system. That being said, I wanted to go for a Wet / Dry Sump Filter setup as it would be  the most easiest system to setup at home with the various resources laying about. Unfortunately while gravity will be doing the work of siphoning the water from the tank down to the Wet / Dry Filter Media, it will not be moving it back up to the tank. For that I concluded there was no escaping the need of a pump in some shape or form to move that cleaner water back into the tank. From what I read the pump will pretty much determine how big I can make his tank.  So this brings me to my current dilemma. Presented with various motors around the house, I went for the biggest I could find (* excluding the water pumps in our cars mind you). That so happen to be a 1.25 HP Wet & Dry Shop vac that was collecting dust in the garage. I confirmed the motor is working and already came with the impeller attached to it. I was hoping to see if you fine folks could share some wisdom on how I can: 1.) Make it Waterproof. 2.) Adhere the right type of casing around the Impeller and Motor so as to benefit from the  Bernoulli's principle and get the most water moving through my system.  3.) I intend to have this setup not 15~20 feet from where I sleep, this motor is LOUD. I was reading online about creating a sound damping box for it and was wondering what suggestions you guys might have for that? I keep fearing there won't be enough ventilation and it will over heat. ....anything else you would like to throw in. TL;DR : 

Topic by Rensouken 8 years ago  |  last reply 8 years ago


new knex gun coming out acctualy it out now name: morretti SR-4

The gun that can shoot better than Gorkems sniper ,and looks much cooler. here is a linkpic 1 ,2 ,3 ,4,and 5 are all old now. 1st pic is the gun it will be ,sorry it's such a small pic they don't have any bigger ones. ) : 2nd pic is a close up of the scope kinda dark sorry. 3rd pic is it with the new butt/stock ,and for grip.4th pic is tit with a new barrel that still needs work ,and the for grip is a better color.5th pic I added a bi-pod it can fold up it's awesome its not fragile ether!6th pic it now shoots gray rods and can shoot through hardly damp shoe boxes from 15 ft away ,and normal card board at 3 ft. away. and it has a new bi-pod taking inspiration from (knex sniper rifle)s bi-pod it works great now I got my sister to shoot it and she hates knex guns.7th pic It has a newer stronger bi-pod ,and a clip flap. 11th pic just a speciall thing you can add to make it reely beastly it still shoots just as good like that wich is awesome. I now added a flap to close up the mag and changed the front sight. Breaking news I got it to shoot 50ft ,7in. without aiming up I think its the best gun ever.More breaking news I got it to shoot 64 ft. and 5 in. by aiming it up at a 40* angle ,but you won't want to do that it is allot more fun to shoot something 15-20 ft. away without aiming up.It also shot in to an apple and 2 layers of bubble rap not to big of a deal. The mag uses 4 decapitated gray connectors ,or 2 orange connectors because you get two if you use orange connectors. It can use two square plates the size of a yellow rod from corner to corner ,and 2 triangle ones the size of a yellow rod on the biggest side.

Topic by the_burrito_master 11 years ago  |  last reply 8 years ago