how do you make a potato gun/launcher?
148748
its pretty simple.\nyou need a pvc or pvp or whatever the fuck its called,pipe. some hairspray(seriously) a potato and a match. spray mad hairspray at the bottom of the pipe, insert potato. and light it up. (the tricky part is introducing the flame to the fuel.
185600
How to make a simple Van de Graaff Generator\n\nITEMS:\nPlastic Tupperware (microwave oven safe)\nSome wires\nNail\nSmall DC motor \nPiece of PVC pipe (approx. 3.8 cm in diameter)\nBroad rubber band \nWooden skewer\nPlastic bag\nRoll of tape\nSoft drink can\nMineral water bottle\n2 3volt batteries\nBattery holder (optional)\n\nPutting it together:\n1) Cut a hole in the middle of the bottom of the plastic container.\n2) Glue/tape the motor to the lid, making sure the shaft is at the centre of the lid.\n3) Using a hot nail (can be heated at the stove), make two holes near each other for the wires of the motor\n4) Thread the wires through the two holes (the two wires will connect to the batteries)\n5) Cover the container with the lid. (Inverted container in this case)\n6)Make another hole, perpendicular the motor shaft\n7) Thread another wire through(this will be your ground wire) \n8) Make the appropriate measurements for cutting your PVC pipe length and grooves(where the stick will rest)\n9) To make the roller, just stick tape to your stick and go round and round and round.\n10) Place the PCV tube on the lid, perpendicular to the motor. \n11) Thread the stick thru the rubber band and place it in the grooves.\n12) Make sure both rollers are parallel to each other when you thread the bottom of the band to the other "roller"\n13) Cut the top of the soft drink can.\n14) Cut both ends of the mineral water bottle off, making sure that it isn’t shorter than the PVC pipe.\n15) Make a hole near the top of the bottle.\n16) Strip some wire, twist it, and poke it through the hole.\n17) Electrically connect the copper wire to the soft drink can.\n18) Tape everything in place.\n\nWhen you put everything together, you get a crude Van de Graaff generator. Make sure the combs (end of wires) are near the belt and rollers. Make sure that when you run it, the belt doesn't slip off. If it does, make sure both rollers are parallel to each other. Also, try to superglue the motor to the Tupperware lid.\n\nWhen you first run it try taping strips of tissue paper to the can. It should start to rise seconds after the batteries are connected. If this fails, put your finger near one of the tissue strips. The strip should be attracted to your finger.\n\nPlaces with high humidity can be a real problem for electrostatic experiments. Try working in an air conditioned room to help overcome the problem.\n\nThe last two links are the best ones and both include detailed step by step process with pictures.
1102488
turn all weapons into chocolate
594146
I can design some for you if you have an idea, they are not generally available, but desiners like me want to help people out by making them.\n\nGoto gamefreakuk.conforums.com, signup and contact me (admin) and i will design one for you.
642052
to edit the game file to have those downloaded weapon files work in the game you must have the img image editor tool specially designed for GTA SA.\n\ne-mail me at \nshadab_ansari2005@yahoo.com\ni can email you that img tool as an attachment and also give you some more modifications (not to forget the hot coffee mod!!!) and tell you how to edit these files.
833532
The basic rifling machine is called simply a rifling machine.  Most modern firearms manufactuiring use a swag method where a super hardened spud is turned down the barrel blank to force/squeeze the metal into the proper land and grove pattern and twist ratio.\n\nThe best infor I can remember comes out out books by P.O. Ackley and Col Townsend Wheley or Whaley or similar.   These two engineers did a lot to improve modern rifling techniques.
789765
Bound's hubby here:\n\nYour spam can of ammo actually is opened just like you would open a can of spam. the "L" shaped tool should have a small slot, which an extension of the tear off metal strip fits into. Then, you twist the tool to wrap the tear-off band onto the "tool".\n\nGood luck!
434147
not sure if i get this right\n\nnever had a potato bazooka war, but if i could do it, i would fill my potatoes with rotten eggs or sticky sticky oil or p00ps.. that should be very disgusting!\nbut i did have a water balloon war\nit wasnt really water, it was more like rotten tomato juice balloon war =)
548955
Use large rubberbands, or bungie cords, and strap them between 2 upright poles. Use a hinge and a peace of wood to make the throwing arm.  You can find all of the parts at a home depot and just kind of wing it.
572514
Other methods involve pressurized air in a bottle with water, makes a crude rocket, there is some video of an asian guy who made a rocket suit with about 20 2 liter bottles hooked up to a pump system that shot him up in the air over water a ways, then he crashes down awkwardly.  Poor guy. Probably for a game show or something, idk.   \n\nOther rocket mixtures use liquid or solid fuel, depends what you mean and want when you say "Rocket".  Like are you trying to make something to play with in the yard, or trying to make your own ICBM?  \n\nAll you need is some source of thrust to be propelled out the back end which because of Newton's Law of Equal and Opposite reaction means that it can operate in a vacuum, with no medium to push against (unlike a propeller or jet engine or something of that nature).
811403
I've included the links to manuals for both weapons. Good luck!
314204
Because of the weight of the sticks, you will probably need to split them into 1/4 or 1/8 widths, wet them and curve then for the wing shape (rounded on top), and then glue them in a framework. Use tissue paper. If you make a propeller, you could power it with a wound rubber band.\n\nConstructions such as this were made by aeronautic teenagers 50 years ago, but they usually used balsa wood.
495614
http://www.vitsch.net/ham/homebrew/upconverter/\nGood luck with that. ;)
815673
OK I'm cheating - I put this answer up a little while ago.\n\nA quick and dirty idea for a physics project would be one based on electromagnetism. Without knowing what grade you're targeting, a simple one that has a fair amount of pizzazz is to build a gauss rifle. Checkout http://sci-toys.com/scitoys/scitoys/magnets/gauss.html\n\nThe sci-toys site has some other pretty cool stuff that you might find useful as well.\n\nFor a more advanced example, you can make a small rail gun that applies similar principles but can have a much larger kick. Just do a search on "rail gun experiment".\n\nEnjoy!!
993990
a compound bow and carbon steel arrows should do the trick, a gun would work better though
89683
Make one that shoots mini marshmallows.\n\nMy dog loves them, but the larger ones are too messy in the summer when they are not consumed, and they start melting on the walkway.
175609
Lemmings Paintball, PaintBrawl, Renegade Paintball, High Impact Paintball, if you have Half Life, there's a paintball mod for that game.\n\nHope that helps you out.