How do I make a Gold Ball Cannon?  (Detailed pictures/videos/text links would be greatly appreciated.)  Thanks
463669
Check out these websites for more info.  I offer these links for information only.  \n\nhttp://www.diamondbackcannons.com/\nhttp://www.advancedspuds.com/gbcannon.htm\nhttp://www.cannon-mania.com/third-scale.htm\nhttp://www.powerlabs.org/cannons.htm\nhttp://www.pyrocreations.com/inc/sdetail/505\nhttp://www.gunsamerica.com/guns/976529631.htm
1060684
http://thefifthrule.com/T5R/?p=225\n\nhttp://www.myscienceproject.org/gelatin.html\n\nhttp://how2dostuff.blogspot.com/2006/01/how-to-make-ballistics-gel.html\n\netc, etc
463898
Everything you need to know about boomerang throwing is in\nhttp://www.gel-boomerang.com/instructions/index.html
494586
Here's a site I made that has picture tutorials and even google video showing you how:\nhttp://www.jimmyr.com/searchhistory.php
926957
http://www.psadna.com/ball/ballprocess.chtml
514692
I'm still trying to pull up mystical ball to check it out, but here is a site explaining how it works.  I haven't read it yet, because I don't want to spoil the fun;)
1185755
This is how to do it, I have done it 1 month ago in school.\n\nMaterials Needed:\n1)Plastic Soda/Water/Juice Bottle.\n2)Liquid, you have to fing the correct combination of liquids to use, and see which liftoff was the best and try to be creative, don't blow yourself or your house up, though.(we did at school)\n3) I believe it is a pumper, you could search it online as "water bottler rocket launcher" on Yahoo. I THINK it's around $60:)\n4) materials you want to decorate your rocket with(leave the inside empty)\n\n\nInstructions:\n1)Decorate your bottle, don't make it too heavy though.\n2)Find the best liquids that mix to make the rocket's liftoff better, or buy it from someone(remember to buy it legally).\n3)Mix the liquids, be safe and don't blow up anything.\n4)Insert the liquid in the hollow bottle, and immediately insert the top(the side you drink with) in the whole, make sure the launcher you buy fits the size of your bottle.\n5)Push the red(or any other color button), the rocket might start to shake, that it OKAY.\n6)Let an ADULT, hold the string, and count down.\n7)The string is jerked, and the rocket is lifted off.\n\nRemember, these instructions might vary from launcher to launcher, and to be safe when mixing liqiuds, mix safe liquids like orange juice and apple juice!\n\nAnd be safe..............
317575
This is actually pretty easy.\n1) Take a 2 liter bottle and poke a hole in the cap (with a sharp knife or philips head screwdriver) just a bit smaller than the diameter of a straw.\n\n2) Get a straw and force it through the hole in the lid. The straw should be made out of a fairly strong substance.... perhaps like a curly straw. The curly straws actually have straight sections. If the straight section is at least 3 inches long, it should work to go ahead and cut it. If the straw jams too tightly in the lid, it will obstruct the flow so just cut the hole slightly bigger until you get the right fit. We just want the straw to fit REALLY snug.\n\n3) position the straw so only a small length of it is pointing out the bottom of the cap (the longer portion should be sticking out of the top of the cap acting as a nozzle). Once the straw is placed, you could use a little epoxy or tape just to keep it from coming out.\n\n4) Get a small water balloon. Lower it into the opening of the bottle but DON'T LET IT FALL IN!!!!  While holding the opening of the water balloon above the opening of the bottle (with the rest of the balloon hanging inside the bottle), fill the balloon with vinegar so that it takes up about half the volume of the bottle. Once this is done, tie off the top of the water balloon and let it drop into the bottle. You may want to hold the bottle on it's side so the balloon doesn't smack the bottom of the bottle. Then slowly tip the bottle back up.\n\n5) Now, carefully fill the remaining space in the bottle with baking soda. (we don't want the balloon to pop YET)\n\n6) Put the lid back on the bottle and stick a piece of chewed gum just barely in the outside opening of the straw. This will preserve the baking soda by not letting any excess moisture in while the fire extinguisher is not in use. Make sure that the gum is not in too tightly or too far as we want to be able to remove it quickly.\n\n7) You are done!!!!! To use it just remove the gum and smack the bottle on a hard surface so the balloon breaks inside the bottle. When the balloon breaks, the vinegar and baking soda will mix, react, cause pressure, and the pressure will be released through the straw and in the direction that you point the fire extinguisher  : )\n\nHope this helps\nThanks\nJon
537936
Use a shoe box.  Tape on some wheels and axles.  Put the balloons inside the box with the base of the balloons taped so all the air will go out the back.  When the air is released it will form a primitive rocket, propelling the box-car across the floor.\n\nI can't say this isn't rocket science, because technically, it is.
404143
go to your blacksmiths ( i recommen WH Blacksmiths) don't forget to take about a ton of iron ore with you this can be found in Mordor or just that massive mountain by your house boy, after you have mined there and taken the ore in a wheelbarrow to the blacksmiths (or public forge) smelt the iron in the forge until it becomes soft and creamy, use a small tea spoon and if it melts in the ore then its ready. Pour the contents onto a bracket of somesort (please search on yahoo for the proper name) and pour cold water over the mould to cool the ore and create a chemical reaction. Get a big hammer and whack the sword and shield in to shape, hammer it in the morning and hammer in the evening just hammer all over the "stuff". Once you have zen. You can now sharpen the sword on a wheel and one of those foot pedals that make the wheel spin, lots of sparks will fly off, so wear protective goggles and ask an adult to help you. Tie a piece of string to the shield as a handle (at this point you will probably be on the school bus trying to get everything perfect and finished so this will save time). Sorry I cannot help you make a flail, try Walmart. Hope this helped , I made a shield and sword for my sons "Narnia" playset.
500012
make a catapult or a trebuchet\nmake a lever\nmake a hydraulic lift ( soda bottle hosing balloon housing for balloon like a box or can, something to lift}
469757
Can you use Flash? You can make very nice looking games with that. Plus you have whole lot of tutorials on making games in that.
941395
I had to do this before, but I had to make mine out of candy. If you're allowed to do that, use candy. It's pretty easy. Just get some wire, twist them to the right shape, and use different kinds of candy on them. Once you have those up, then you'll need the wires that go across to connect them. I find that candies like twizzles and gummy worms work well. It shouldn't take that long to make. Good luck!
989928
Give this site a try  http://www.ballericons.com
767612
You will need to investigate the chemical mixture to use, there are common ones like black powder (Potasium Nitrate [saltpeter] + charcoal + sugar) I used to buy saltpeter at the drug store (in the olden days they gave it to boys to reduce sex cravings...) but I don't know if it is available there anymore...\n\nYou need 2 other components besides the fuel - 1. A nozzle, and 2. An igniter. \n\nThe simplest nozzle would be a straight hole drilled through a plug (that would close the bottom of your cylinder rocket body full of fuel). But a point to point cone shape would be better. Another alternative, I saw a design for a model rocket which used an empty CO2 cartridge (like a BB Gun would use) the cartridge end is very nozzle like and you just fill it with your fuel.\n\nFor the ignitor, there is something called nichrome wire, it is a thin wire that when you attach a battery to it, it gets hot (even easier though, they sell little ignitors at hobby stores for estes type model rockets.) You would have to mount the ignitor into your fuel and plug up any remaining space so that the fuel doesn't fall out...
1172427
Hey if you really want to know go to: http://www.gemcar.com/  not only can you find your answer it will tell you how to build one......good luck
973634
You can get it off of ebay with no questions asked. MY questions would be are you making bombs? Do you have a black  powder gun? or are you trying to lower the male sexdrive?