How could I make rocket igniters for model rocket engines such as Estes rocket engines?
414736
A few bucks you would pay for igniters is really a lot cheaper than a doctor bill for burns messing with fast burning chemicals.  I'd stay with the store bought.  Just my opinion.  Careful
488798
Hi:\n\nNASA mostly use hydrogen and oxygen or tri-nictro-oxide in the liquid stages of their rockets and ammonium Nitric or some other solid state fuel that similar to gun cotton for the solid rocket booster. However in the early day of rocketry; they use any liquid fuel that would combined with liquid oxygen, Such gasoline,100 proof grain alcohol,Kerosene, fuel oil. and gunpowder or gun cotton for solid rockets Today however they mostly use hydrogen and oxygen for the liquid fuel rockets. What type of fuel they put into their rocket depend on how much weight their payload is; and how high they want it to go, and if they are visiting the planets in our solar system this as to be accounted for too.\n\nBack in the 1950,s and 1960's NASA had developed a Nuclear rocket engine under a project name: "Project Pluto" where liquid hydrogen was heated by a nuclear reactor to produce  a rocket thrust to propel a spacecraft in space. It fell out favor with the public due to radiation issues. There is a new type of rocket that uses ion propulsion where a gas such a hydrogen or Xenon gas is ionized and run ed through a series of electrically charge grids and are accelerated to very velocity as they exit the spacecraft And then there is:  The Antimatter and Matter rocket engine this where Matter and Antimatter is allow to mix in certain ratio in a rocket reactor vessel and focused by magnetic field to generate a lot of thrust
490639
There is a website on how to make a volcano model below
625619
what the heck is a mentos rocket???  Do you put those little breath mint thingies inside a rocket and launch it?  That's weird.  Doesn't sound all that fun to me.\n\nWell, since I'm not sure what that is, I don't have any really good ideas.  \n\nBut here's some links for science fun\n\nhttp://www.funsci.com/texts/index_en.htm\n\nhttp://www.exploratorium.edu/science_explorer/
645758
My husband does it.  He usually uses a bic fire wand and the gas starter. \n\nOh, wait a minute, you were talking metaphorically.  \n\nAgain, that would be my husband. He uses many different approaches and has a pretty hot success rate.
212075
Nasa does, apparently they made it work too.\n\nGo to your nearest hobby store, look at a model rocket , the one that actually work and the times that by a 100, add some heating and air tanks, etc .\n\nBudget for a couple of 100million dollars or take a VirginSpace flight at $200,000. He's selling tickets now. Cheapest way.
407939
Here are the instructions for building an actual NASA approved bottle rocket.\n\nI hope this is helpful!
748213
Try Edmund Scientific on the web..but if you want to make your own try the link provided.\n\nGood luck!
978881
A great rocket design using a 2 liter bottle is always fun. You may want to amaze and stun your friends with a new type of rocket. It is a Mento powered one. Take a bottle of Diet Coke. Drill a 1/2 inch hole in its cap. Find a tube, or box that the bottle can stand upside down in. Drop 8 Mint Mentos into the bottle. Place a small piece of tape on the cap so the bottle will not leak. You have to be really really quick. Place the bottle upside down in the standing position. or on an angled ramp. You will be in for a big surprise! In actuality, you can make a great water rocket with a bicycle pump and pvc pipe.
931550
adjust the ratio of gas that mixes with air for combustion
604852
Here are a couple of web sites that approach this in different ways. \n\nhttp://www.circletrack.com/techarticles/84199/\n\nhttp://www.diracdelta.co.uk/science/source/e/n/engine%20excitation%20mechanisms/source.html\n\nHope these help.
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.
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..............
766289
depends on how big the rocket is and how much fuel it has, don't you think.  My model rocket could lift a miniature camera and a small parachute.
858249
well for a candle to burn and have a visible flame we need 2 things convection currents and gravity to support those convection currents. both missing in the space shuttle :))
736544
I have some experience with designing lightweight missiles (Nerf type guns specifically) and I can tell you that there are 3 main items of importance when it comes to getting the maximum range possible:\n\n(1) Have a set of 3 or 4 fins that poke out to just about the same diameter as the body of the rocket if the rocket tapers in at the back, or about 25% to 50% greater diameter than the body of the rocket if it does not taper.\n\n(2) make sure you have no "shelves" in the design.  "Shelves" are rear-facing step-like features that create suction as the rocket is flying through the air.  Imagine a bullet flying through the air, the bullet is basically cylinder-shaped but it is pointed at the forward end.  The rear end is flat.  This flat creates a shelf, and a region of suction forms there which slows the bullet down.  When you are dealing with something low-density like a soda bottle rocket, this suction has a much more noticeable effect than it does for higher-density projectiles like bullets.  But even with bullets, they use a shape called a "boat tail" to overcome this -- see the "Rifle Bullets" section of this website for a picture of what I mean:\nhttp://matrix.dumpshock.com/raygun/basics/bullets.html\n\n\nFor a what-not-to-do, take a look at these missiles:\n\nhttp://www.amazon.com/gp/product/images/B0002FYR0M/ref=dp_otherviews_2/002-1250901-3240058?ie=UTF8&s=sporting-goods&img=2\nNotice how the back end is flat?  That is where all the suction happens.  If they had a way to make those missiles taper together at the tail, they would go a lot farther.  Since a soda bottle tapers at the mouth (which is the rear when launched as a rocket), you want to maximixe this effect.\n\nhttp://ec1.images-amazon.com/images/G/01/ciu/e7/fc/a232d250fca071ddd6b17010.L.jpg\nNotice how this one not only is flat at the rear, but it also has a "shelf" feature that goes all the way around it, at the back side of the yellow warhead section.  That will create a lot of suction too.  If that were tapered into the body like the rightmost missile in this picture, it would go a lot further:\nhttp://en.wikipedia.org/wiki/Image:Titan_Missile_Family.png\n\n(3) Nosecone -- ideally for a low-velocity low-density missile like a soda bottle rocket, this should be rounded.  Like the ones at the top of this webpage about soda bottle rockets:\nhttp://waterrocket.uh-lab.de/backglide.htm\n\nYou can probably get some really good nosecones for relatively little money at a local hobby shop, in the model rocketry department.  Failing that, look for a thin hard-plastic ball that you can cut in half.  Some soda bottles already have rounded ends, but these are becoming very rare now since they were more expensive to make than the ones with flat ends.  If you can't find any good round nosecones, you can make a cone-shaped one by cutting a big circle out of construction paper and then cutting a "pie slice" out of that circle.  Now you can easily roll up the remaining circle section into a pointed cone.  Play around with it until you have reduced it to the least amount of paper needed to achieve the desired cone, because any extra paper is just weight that must be moved and yet won't help it fly any better.\n\nHere are some great web pages for this fun sport -- including one from NASA!
395979
I dont think you could physically make an actual jet engine that size-there are constrictions on the speed and fuel at that size.  You could mockup on, but it wouldnt have significant thrust- If it's thrust you are after, then you would get much better results from rockets, and they are much easier to build as well.  Its exceedingly dangerous, but I assume you know that already-There are a lot of very good websites for building small rockets.  When considering, be sure to calculate the maximum thrust force you want.  On a bicycle, even a relatively small force can accelerate you-Do not build a rocket based upon your weight, because you arent overcoming total gravity, and you would have far too much force-I would estimate 50-100 pds would be plenty, with less than that as a test rocket.\ngood luck