how to make a modular fireowrk mortar tube system?
457730
non-combustable tubes of the required size, a sand bedded box, fused mortar loads and a match.
985762
You can make a tornado tube, and this website tells you exactly how to do it:\nhttp://ns.isp.nsc.ru/l24/mamont/climate/tornado.htm
549468
Add some baking soda first and then pour on some vinegar. You will observe some bubble forming and the bublbles will rise very quickly. If you want to make fire instead, add some glycerine to potassium permagnate. Be very careful if you want to do this.
278492
From an online Pipe company. Here is one that might be useful!. Good luck!
663481
Depends on the pressure and temperature of the system. At low pressure and temp you can use teflon tape or plumbers putty, at high temp and pressure you need to use garlock, graphite flexes or a graphite sealing compound. you should really weld any high pressure unions and then then test prior to putting the system into use.
183707
Follow the bottom 2 links that I am going to post to get a labeled schematics\n\nhttp://www.kids-online.net/learn/click/details/sblvalpci.jpg\n\nhttp://dmzweb4.europe.creative.com/wwimages/audio_int/sblive/liveplayerconnect600.gif
1018281
Go to http://www.bersafirearmsusa.com/ they have munuals available there
860530
visit\nhttp://www.diytrade.com/directory/global/buy/products-list/0902-t-i-1/Wire_Mesh.html
867963
use an acetylene torch aluminum rod & flux.
249929
build them yourself with a program like the GIMP or Jasc. it aint that hard... or you can get some off of google image search probably.
416611
First, drill a tiny hole in the ground...No, four holes, each about two or three feet from each other. Then stick in four 1-foot tall pegs into each hole, one peg in each hole. Heres the hard part. Drill one more hole one centimeter away from each peg, stick in another metal rod (really thin), and then bend it till it touches first, thicker, taller peg, then weld. Add a very strong metal upside-down T beam onto the pegs, cut off excess (the ones that extend farther than the peg's location), then weld to the large pegs. There! Phew, that took a while. Hope it helped. Also, take note that this advice only works when you start from scratch.
294472
You need something called a fire wall.  You can download a very good one at zone labs.  It's free...
1096154
use a pop bottle quarter fill wth water, and seal with a rubber cork(one with a hole in the middle this is where you put your compressor attachment)  add fins to your bottle just like a real rocket\n\nuse a half pipe as a ramp and angle it a 45 degrees ataach the compressor to the bottle and turn on.  when the air pressure gets high enough the cork will shoot out and the rocket will fly.  try different amounts of water and change the angle
580204
Wrap a flexible plastic tube in a spiral around a plastic pipe.  Screw it.  It is really hard to make one using a screw because you can't get the fit between the pipe and the screw tight enough using household items.\n\nThat's all there is to it!  I did this for a science project about 1962.\n\nAlso, do an image search on "archimedes screw" to see some really big ones.
898940
You can find printable schematics on the page I've linked below.\n\nGood luck.
255340
NO way to do it cheap and safe.\nAlso, due to the size, moving is difficult, unless you can build it in parts, and keep it together while using it.
128346
Ok, this is how you do it.  You need to have the following items: A coil of copper wire, a barrel shaped magnet, a tube, and a bulb.  Take the tube, and this could even be a paper towel cardboard center, and wrap coils of wire around the outside of the tube as many times as you can.  This should cover the outside of the tube.  Now, take the two ends of the wire and connect them to the + and - of the bulb that you will be using.  You must then place the magnet (a barrel magnet is best, but any will do.  The stronger the better) inside the tube, and cover both ends of the tube.  Now, as long as you are shaking the tube lengthwise, and the magnet slides up and down inside the tube, the bulb will shine.  To make a more practical flashlight, you could do one of two things.  Either have an electrical storage device that will hold the charge so you don't have to keep shaking it, or you could rig something up that will keep the magnet moving inside.  Either or both will work.