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  1. donkey

    business idea

    Hey guys I try to keep commercial products from this forum as it raises too many issues but I kind of am stuck. I have an idea of making an all in one for tradies. the first item is going to be an inspection camera but am thinking an oscilloscope, multimeter and thermometer might be involved...
  2. donkey

    Lithium battery charger

    ok..ok..ok can someone frame haralds comment for me.... I came up with a good idea yay me
  3. donkey

    Lithium battery charger

    you are looking at this wrong, if it were me I would go to the local tip(rubbish dump) and check their tool section. find an old cordless drill 18v lipo and rework it. you don't need the drill just its charger. someone on here might be able to tell you if any modifications are needed but I...
  4. donkey

    Experiment Circuits for Magnetism, Capacitors, Inductors, and Alternating Current

    as you are starting out I recommend DC voltage and 12volt max experiments. find something you want, like a new light activated switch, radio, car amplifier... something that will intrigue you and keep you coming back for more. if you have kids (or kids close) start making blinking LED (for...
  5. donkey

    New Career?

    this has always been my favourite clip but I still don't want to get up that high.... or be the guy doing the work however watching this clip is what resparked my interest in electricity. don't ask why but it just did
  6. donkey

    capacitor status

    hey capacitor. the first thing you learn with electronics is safety safety safety. playing with a 2100 volt cap at the age of 11 is the exact opposite. your last statement is of conern too "that could give you a mild electric shock similar to that of an electric fence" I am a little worried...
  7. donkey

    New Career?

    is my fear of heights really bad or what? I can't actually watch this without my legs shaking.
  8. donkey

    Door Lock - USB key

    http://dx.com/p/usb-2-0-fingerprint-security-lock-flash-jump-drive-4gb-71721?tc=AUD%3Ftc%3DAUD&utm_source=GoogleShopping&utm_medium=CPC&utm_content=71721&utm_campaign=USB%20Flash%20Drives&gclid=CPDR9cySlrYCFUpgpQodHXsAwA buying something similar to that may solve a few issues. you can lock your...
  9. donkey

    Door Lock - USB key

    http://www.instructables.com/id/Garage-Door-Opener-with-iphone-Arduino-project/?ALLSTEPS theres a start for you. hope it helps there are a myriad of tutorials on this subject when you get into it too.
  10. donkey

    ok this is sci fi right here

    I thought the plates did not touch Inside the capacitor, the terminals connect to two metal plates separated by a non-conducting substance, or dielectric. from how stuff works so each piece of al foil is 1 plate not 2 the al foil is the dielectrics the non conductive substance between the...
  11. donkey

    ok this is sci fi right here

    oh and laplace and john thank you so much for your help so far, and laplace that pic is pretty accurate in the spiral designbut the schematic on the right does not match the spiral. if my edumication is half decent then the 2 "middle" spirals will be a cap hooked up to a battery and the...
  12. donkey

    ok this is sci fi right here

    how would it be 4 caps? a cap is 2 plate 4 pieces of alfoil divde 2 plate is 2 caps right? i am trying to configure this to be as close to my idea as possible which is 2 plates affected by a battery and the other 2affected by the first 2. what I am trying to avoid is making a transformer...
  13. donkey

    ok this is sci fi right here

    ok let me put it this way then imagine 2 ballons inside a box. this is how I see a capacitor the air is electrons. so when at a stand still they are both half inflated no pressure adding or removing like in a cap when nothing has happened both plate have the same charge. now when you apply a...
  14. donkey

    ok this is sci fi right here

    ok I get to a certian place there and then get lost. don't electrons get usedto createnew things? so in the case of a spaceship the electrons would either be stored on the cap if not used, or used to create movement or light or whatever? I am positive thate I have thebeginners guide to what...
  15. donkey

    ok this is sci fi right here

    laplace within a capacitor there is bunching of electrons, that is how it works one side gets more electrons the other side gets less the copper plate may bea bad design but I still am trying to figure out what plate would be good in its place. I need something that will give afree electron...
  16. donkey

    ok this is sci fi right here

    ok what I am actually after is the copper plate to ionise as the electrons would flow through the bulb creating light thus using electrons. the end result is less electrons would be in the copper plate. my theory isthat you could use a conductive sheet and makea battery of sorts from it. the...
  17. donkey

    ok this is sci fi right here

    so this is possible right? its not as far fetched as I thought?
  18. donkey

    ok this is sci fi right here

    ok so if I discharged the plates on the lower level that would in turn make the electrons flow up a level?
  19. donkey

    ok this is sci fi right here

    ok by the time I get to the third pic will electrons flow the way I predict? oh and I always get the diode thingy messed up I think thats wrong again but its meant to allow flow from the plate but not to the plate. the brown thingy at the top is a copper plate
  20. donkey

    ok this is sci fi right here

    hey john thanks for replies so far. will get pics of how i see it working in next few hours to show what I see is happening
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