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H2SO4

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Posts posted by H2SO4

  1. Im making a propane cannon (like a potato gun, but i will shoot anything that fits) and ive already built the barrel and fuel intake and air mix blah blah blah parts. So i was going use a simple piezo igniter from a barbeque to light this but it seems that is very inadequate and troublesome. I cant seem to lihgt my mixture of gas with this! I miniturized the thing (meaning i put propane in a 1 inch Cu pipe and sealed one end with a hole for the ignitor wires) and even thouygh its spars inside it seldom is successful in ignition. I weant something relieable. Im thining if i can make maybe a 12 kilovolt PSU i could just use a solid arc for an ignitor and that would be a sure fire. But i dont have a 12kv psu. i cannot even find a schematic for a very simple one. I have a 500v psu from a small flourescent light for a gameboy accessory so im wondering if i can further step that up with a transformer to get my voltage. I would like to just build somehting with minimal parts. Maybe a 7.2 v batery and two transistors and a cap and a transofmer. Would a trigger coil provide me with the neccessary voltage? I jst need to build a cheap HV supply.

  2. I got this idea when i set my alarm (on my pc for big sound as i have them conencted to a home theatre setup in my room) to play killer queen very loud at 5 in the morning. I was dreaming during the alarm sound (for about two seconds before i awoke). I remember talking to my uncle then i heard the tapping of the drumstick on the rim of the drum for about a second and i remeber being startled by this phantom sound comming from know where. I woke almost immedietly.

     

     

    So i got this idea. Im sure were all familiar with the fact that an outside stimulus can influence a dream if it isnt enough to wake you. So im wondering if i set my pc to play a sound file with some kind of sound that describes an event that happens in normal life (for example a sound file of a lawn mower that sounds like its going outside your window) and played it a few hours into REM sleep. one site noted that an outside stimulus will affect a dream but will inevitably always wake the person up. Im thinking ill try it this saturday but i need ideas for a sound file. Maybe some sounds of cars or an engine as im taking my first driving lesson sunday afternoon. Maybe this will make it rwealy easy for me to dream about driving or something

  3. When i built my pc i bought a realy high end mobo, but the strtange thing is that it has a bunch of other port (2 pci-x, 2 pci x1, and 1 pci x4) and only two standard pci slots. I have in one an xfi soundcard, and in the other a network card ( i also have dual lan on my mobo, so i dont realy need it, but i do like it, as its nice at lans). SO no more pci slots. But now i need a wireless card and i dont want a usb one. USB adaptors never seem to be as fast and my friends is always buggy (he has a name brand linksys also) and also i like having internal things, as oppesed to the usb substitute. SO im wondering if they make a wireless card that uses either pci x1 or x4. I cant seem to find any on google.

  4. nylon netting would probaly be lighter than paint i dont know why but i think it would. But it might affect it areodynamicaly or even maybe a lightweight nylon netting would just get obliterated by a high speed piece fo foam.

  5. this reminds me of the circle k convenient store gas station down the street that plays classical music outside to discourage teens from loitering. I actualy like the music. I find it relaxing. I wonder if it actualy works though.

  6. im 15 and i cant hear a thing, not even after turning my reciever all the way up and playing the sound through my jbl l100 centurie (actualy my dads) studio monitors, and without any bass enhancements or anything. Lol owned.

  7. how would you accelerate a photon, traveling at the speed of light, faster than the speed of light, using particles traveling at the speed of light (from the lasers). Centripical force? And even if he did do this, who the hell is he gonna know if a particle the size of an electron went backward or forward in time.

  8. well if the universe is expanding, but slowing down, then that means that the whole things gonna come back together and probaly create anpther big bang so it probaly wont stay cold forever. If this is indeed what happens, i wonder how many times this has happened. It hurts my head

  9. if you look under the key their is little tabs holding the scissor hinge together. They stay on with the springing action of the keys switch. If you get under there with a small flat head screwdriver, like for eyeglasses, thebn you can carefuly pry them of. Then to put them back on you simple place the key ontop of the switch and depress and slide or something. I have a laptop and i knoticed the same thing. I took everysingle key off and cleaned under it. Since i was do it, i took all the keys and lubricated every keys scissor hinge with a drying teflon lubricant. Its llike if not better than brand new now. Its not that hard.

  10. is their a break in the wire? Are you trying to produce heat with the current, to make steam or something? Because i dont see how with a short circuit you can use it to make money. If anything to make movement (if thats what your trying to do) your going to need to draw as little of current as possible.

  11. basicaly if you put a better graphics card in their it would still suck balls. If you want good graphics, capable of modern games, your gonna need to build your own pc (recommended) or buy a new dell or something.

  12. Im guessing id need a high amperage charger to charge more than one in a parralell and series circuit, liek the one you described. But no, i do not have an current meter. And im on summer vacation so i do not have access to one. Im guessing it would take just alot longer to charge an array of 3x3, but my charger only delivers 300 mah, so surely after awhile i would blow the power transistor.

     

     

    Ok so heres another question concerning my power supply. If i took a voltage regulator such as the lm317 and swapped it out with the low power power transistor, would the psu most liekly work and deliver much more current? Im wondering if instead of buuilding a new one, i might just swap the power transistor. The one that is in their is relatively low power

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