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is the red color the important part? Or the amount of heat? Or...
Boiling the h2o before use may get rid ofsome bubbles
Golf Ball Puzzle
21 letters as far as I can tell. Substantial repitition of those.
try putting a sheet of plastic over a touchscreen. If it is thick enough, your finger won't work. I think a stylus will work at a greater distance.
whats the tolerance of the floor beneath those legs? ;)
buy a manufacturedmanufactured flashing led.
yup. google "flashing LED. "
try a piece of clear rod as a lens.
or repair the old handle?
mythbusters collection 10 episode "paper armor"Results: good protection against slashing, stabbing, field tip arrows, and a flintlock pistol. It failed with a 19th c revolver, but so did the steel armor. Steel armor 2x the weight of paper. Approx 30 thicknesses of paper. (folded)
using it "wrong!".
breaking bad did.
how much current? What are u powering?
http://www.daviddfriedman.com/Medieval/Articles/Perfect_Armor_Improved.htm. I suspect that back in the day, armor may have been rawhide. Why bother tanning it
it sounds like a defective outlet. Or corroded plug. Too much resistance in the outlet means that it acts as a fuse. A slow blow fuse. Probably not an issue with the appliance itself.
ok. I was getting ridiculous. I'm inclined to think that putting the safety device in the appliance is best. If you'd like to plug a 1500 watt space heater in, or a 15 watt soldering iron, and have the outlet determine overheating (not excessive current) , well, you've got a serious engineering challenge. It's also interesting that, as a filament grows hotter, it's resistance goes up. Thus current goes down. So, if the outlet checks current, it may miss an overheating event. Another option might be to hook a smoke alarm to a wireless transmitter which shuts off outlets if smoke is detected.
Probably. BUT.. The best approach is likely to find out how much current the LED draws. If it isn't printed on it, you can get a multimeter for $0 to $20. Hook it, and the LED up to your car battery (or some other complete overkill voltage source) and find out how many milliamps it pulls. Then you can compare numbers.
amp hours is part of the equation, but amps is another. If the battery doesn't get hot while powering the LEDS, then it's fine. If your not certain of adequate amperage, then hook batteries in parallel.
A breaker in an outlet could limit current.Or it could have an IR thermometer which could be aimed by the user at the appliance. This thermometer would interface with a computer which would shut off a relay when your coffee was warm. or maybe after the coffee maker bursts into flames. or you could spend more on a good coffeemaker.
mmmmmmm...... my typo... "uDDerwriters laborotory" Yes. that would have to do with milk safety.(Underwriters Laboratory might be more pertinent to this thread)
check for the "Uderwriters Laboratory" symbol on appliances.
many devices like hair dryers have a thermal circuit breaker built in. Dunno about coffee machines. Can I take yours apart to look?
http://www.harborfreight.com/air-file-1704.html requires air compressor.
8 cells of 1.5v each makes 12v .
if you wrap a magnet in 5 layers of tape, strength will be diminished . If you wrap it in 20 layers, it will be weaker still .
how about electromagnets?
pretty common for someone following me to have never shared an -ible themselves. So if I were to follow em, there wouldn't be anything there. I'm not inspired to follow anyone that I don't feel like doing so. Maybe they follow 1000 people, but don't actually look at their stuff. If I want to follow 3 peeps, and actually look at their stuff, that seems more real.
if you dont know if that is hot enough to fry the coil, there are 2 easy options. Risk frying it, and replace it if that happens, or throw some resistance in to reduce current (and effective V) at the coil.
is there a part number somewhere on this relay? usually step 1 is to google component specs.
is there a reason that empty posts are appearing in this thread? Frank and Raphael post with no visible content.
what relay is it? What voltage is the ac
vacuum pump oil. Works for friiends who do this in 3rd world for steam engines. Think they may put clips, or tape ariound the edges. Will contact em to ask.
the larval stage of ladybugs is kinda weird. I took one to be ID-ed thinking they might be harming the tree they were on.
so what's with not even letting u patch or replace screens at your own expense?
why does landlord not want screens patched or repaired? Can his concerns be fulfilled while keeping bugs out?
mozzies are mosquitos?
it comes down to current capacity.
consider if your power supply is limited to 0.1A, and the battery takes 0.1A. Not much left over for the light. But if the supply can produce 10A, and the battery takes 0.1, then it is no problem.
I like it. I've pulled 1 or 2 of those apart to discover greater complexity than expected. Now for reverse engineering.
typical house water pressure 70 psiTyp. Air. Comp. Press. 120Typ. Pressure washer. 1500 psi
https://en.m.wikipedia.org/wiki/Silicone_rubber 575F. Sounds like zinc would damage it. Lead is OK.
yeah, I guess 100% of one's weight on 1 side is significant.
https://www.menards.com/main/paint/paneling-planking/paneling/fasade-reg-diamond-plate-4-x-8-pvc-wall-panel/p-1444423260561.htm. Most westrn toilets have hinged toilet seat and a cover over that. What if another hinged layer, at the bottom was diamond plate? Stand on that.
I might draw it up, but I'm not real motivated to build it. As for cartoons, I'm not much of a cartoonist, but I. Think it's a 5 frame comic: westerner steps out of shower, butt sparles with cleanness. Asian squats on toilet. Toilet with footprints, Westerner stands up from toilet with footprints on butt. Repeat frame 2- Asian sqatting this time with cicle an line across, indicating "don't do this
funny, yup. If toilets are getting broken, how hard would it be to have 1 stall with an Asian style hole in the floor?
one could take the squatty potty one step further. Build a platform each side o the bowl, same height as bowl.
adressing why they consider western method unclean may be important. Are butcheeks unclean in Asia? Could they put toilet paper on seat
if you can find hollow plastic tubes, a screw or bolt could go in the end. 1/2 inch pvc, maybe.
I gotta remember that phrase! Nice!No Go?
I've never needed permit or lisence. U.S. I think you need training above a D engine. Wildfire is more likely with rockets than guns. Perhaps that is the concern.
Ah. I'm not at all sure that electric will have the power to weight ratio you need.
There. I see it. Thanks.
Colin furze did somethin like this. Check youtube.
when I get a new car, the old one gets bored, lonely, and jealous. Then 5 to 15 years later, it rises again, like the phoenix from the ashes... or rust, in this case.
If you find a 5v charger for your car's cigarrete lighter, it will work for 12 v in, or 18 v in, or 7 v in. So if you don't find the exact right battery, you can adapt it.As for the initial generator, Seeing what's available is often helpful in prototyping. As for what is the best -scratchbuilt, or motor, I as a teacher would be impressed if you tried both and compared efficiency. Options for cheap motors: thrift store cordless drills, junkyard car window motors.
I received 1 or 2 of those once. Didn't know how to activate. Don't know if they expired. No idea where they are if they still exist.
what are advantages to pro
yup. I did a shocker once with this. 9V battery supply. Relay/cap circuit supplies chopped DC to the secondary(now acting as the primary) of a wall wart, and ba-bing-120v output.
yes. I think that's it. Thx, du35m. The pic is slightly amputated, but that's it. Positive to the top left lead, and, ummm...
yeah. I think that for a Buzzer, you don't need caps and resistors, but to slow it down for a bell, blinker, whatev, that's when you need em.
http://letsmakerobots.com/content/fading-led-hardw...Scroll down to the post that says "it works
I like that. Maybe even on a separate, solar charged battery.
I'd make it of coroplast just like a regular cardboard box. Use grommets on the bottom seam, and lace it up like a shoe. Edge pieces only needed if abrasion resistance is needed (or for aesthetics)
well, shoot. Maybe this is an idea for hybrid cars only.
at one point, I was going to do this with cams and switches. But solid state is probably better.
looks like a double pole, double throw. It should be possible to bypass. And FYI, It's soldered, not welded.
craft stores? Foam is sold for insulation at home centers. I've seen shadow boxes made of yardsticks. Foamcore board is another easily worked option.
this might be a good topic to research in a (gasp) book. U may find one in an antique store.
suggested Google terms: atomic crystal structure shape. Maybe add : sugar, salt, quartz, fools gold.
can you let us know whether diamonds actually grow in the shape seen in jewelry? I don't think they do. Can u share your report once it's done?
lie on ground. Bugs will b seen against sky rather than against busy background of bushes, trees etc.
other options: those bubble rock things on the end of a fishbowl aerator tube. It's porous lava, iirc. Or can concrete be made porous with the addition of somethin
I think "shadow box" is the word. Google images. Maybe search instrictables projects.
in future, a more descriptive topic heading would help. "Powering servos" for example.
in my limited experience, 3d printed stuff is rather porous. Not conducive to tight plumbing fittings, nor to sterile surfaces.
actually, yes, you can get a fade-in. Just put a resistor in series, such that it limits current from power supply. A capaicitor in parallel to the LED will then draw most available current, leaving little for the LED, until cap is charged. Shutting off supply allows cap to discharge thru LED. Both on and off will have a fade in/out time if R and C are chosen well.
The technique with a sharpened tube is not to stab, but to rotate the tube as it is pressed into the material. I've done this with foam rubber, tennis balls, semi-hard foam, etc. Consider how you cut a tomato with a knife edge. you don't just press the blade straight down. you saw a bit.At this point, I'd say play with lotsa different materials until somethin works. ...and if there's a chance of 2 materials spontaneously igniting, try it small first. and outdoors. and _UnContained_.
perhaps I wasn't clear. If it is 85F inside and 80F outside, open. If. It is. 70F inside, and 65F outside, open. If it is 70F inside, and 75 outside, closed. See the complexity? It's a comparison of TWO thermostats. Hotter inside than outside? Open. Hotter outside than insi? Closed.
sometimes a bigbox store will sell damaged sheetgoods at deep discount. Is insulation yer option? What about floral foam?
can I ask about more details about what this whatchhoozit does? Or would that violate proprietary info?
yeah. Try the easiest thing first. If it don't work, ya didn't invest much effort. Using tubing to cut a plug (or a hole) is somethin I've done on the 1/2 to 3 inch scale with good success. U wanna grind somethin like a knife edge on the end o th tube, then rotate tube into foam (or rubber, whatever
depending on length and dia, you might sharpen the end of the tube and use it to cut a plug from foam.
just a capacitor might do the fade in/out bit. Try connecting it in parallel.
Voltage limiting can be done with a cigarette lighter to. USB adapter.
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