what makes a bottle rocket launch?
462904
Here's how it works:\n\nThe air and water serve two different functions - the air is what is compressed, and pushes the water out of the back end of the rocket.  The water, although basically incompressible, is what makes the rocket go.  Momentum is always conserved, so whatever momentum (mass times speed) the water gets going out the back is also imparted to the rocket in the opposite direction.  You can think of it as positive and negative added momentum, creating a net change of zero.  The rocket is usually a much lower mass than the water, so the speed it achieves in order to match the momentum is higher than that of the water.\n\nAfter the water and air are expelled from the rocket, gravity is the only remaining force; the rocket slows, reverses direction, and lands on the ground.
127517
When liquids freeze it expands...if the bottle is full with the lid closed, the drink will expand beyound the boundries of the bottle.....and explode.
604767
The shuttle initially lifts off using solid rocket boosters(those tanks that are blown off) which are usually filled with an ammonium perchlorate (oxidizer, 69.6 % by weight), aluminum (fuel, 16 %), iron oxide (a catalyst, 0.4 %), a polymer (such as PBAN or HTPB - a binder that holds the mixture together, 12.04 %), and an epoxy curing agent (1.96 %). After the tanks are blown off with explosive bolts, the shuttle uses its own engines, which are fueled with liquid oxygen and liquid hydrogen.
78721
NO it doesn't - if you're referring only to space - at zero gravity that is! \n\nThe initial launching rocket boosters are abandoned once you enter space, and the fuel is filled only to the suffice the requirement of the rocket launch - enough to push it into space for the rocket to thereon move autonomously.
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..............
124408
The Orbital Maneuvering System of the Space Shuttle uses what is called a hypergolic rocket fuel.  Hypergolic systems work by combining two components that ignite when they come into contact with each other.  In the case of the Shuttles, the two components are hydrazine and nitrogen tetroxide.  Nitrogen tetroxide contains the oxygen necessary for the reaction.
93111
Without breaking what?\n\n1) Break the bottle, but not the ship.  Sure.  Get a glass cutter and remove the top of the bottle.\n\n2) Break the ship but not the bottle.  Even easier.  Shake vigorously :)\n\n3) Break neither.  I really doubt it, since the ship is probably glued together.
713495
Wouldn't it depend on the size of your rocket?
506856
Bottle of Coca Cola or Pepsi...
520077
Have you tried the Pressurised Bottle Rocket?\n\nEasily constructed with used plastic bottles. What you need is a pump, cork and a tube. Build some tail fins to stablise the rocket for flight. You need to put in some water in the bottle. Then just pump the pressure up and you have an entertaining setup.\n\nHave a challenge who can shoot the highest and then parachute the Rocket down. The highest and/or the longest hang time wins.\n\nYou will need a field to do this properly though.
631298
by going to space in  a rocket.
1078102
Over the past 40 years the space program has used two types of propulsion systems, those that use liquid and those that use solid propellants. In space the propellant typically has a source of fuel and an oxidizer to enable the fuel to burn. Today most space systems, such as the Space Shuttle, use a combination of the two systems. Solid propellants are the easiest and safest to work with; however, they are not controllable. Solid propellants have the fuel and the oxidizer combined into solid rods of material that once ignited by a high temperature source continue to burn until all of the propellant is consumed. Liquid propellants tend to be hazardous to handle; however, they are controllable and the engines can be turned on and off and the amount of thrust can be throttled \nduring a mission. Several liquid propellants are also toxic which can add to the handling \nproblems. \n\nThe specific impulse, measured in seconds, is the most commonly used figure of \nmerit for rocket thrusters and research efforts continue to increase the specific impulse of space propulsion systems. Anhydrous hydrazine is a colorless, toxic, corrosive, liquid that is insensitive to shock or friction and is chemically stable and can be stored in tanks for long periods of time. It is commonly used for propulsion in space, while solid propellants are used for the boost phase from the ground. Typical values for specific impulse for fuels used in space are 290 seconds for solid propellants, and 230 seconds for hydrazine. \nThe favorite fuel and oxidizer combination used during the boost phase are hydrogen and oxygen which can provide a specific impulse of 445 seconds, almost double the value of hydrazine. The problem with these fuels are that they must be held at cryogenic temperatures to remain in the liquid form. Hydrogen boils at - 253 degrees Celsius while oxygen boils at - 183 degrees Celsius. Thus, fueling the booster rockets is a complex and hazardous process, for as soon as oxygen comes in contact with hydrogen they spontaneously combust in a powerful explosion. Over the years these cryogenic engines have become the backbone for boosters, used for placing heavy payloads in space,such as those used for the main engine on the Space Shuttle. During the fueling process of these rockets great care must be taken to vent the vapors generated as the huge tanks cool down to below the boiling points of the fuel and oxidizer, while keeping the vapors separated to \nprevent an explosion. \n\n\nCryogenic Heat Engine\nan air-powered car is being developed by researchers at the University of Washington using the concept of a steam engine, except there is no combustion. The Washington researchers use liquid nitrogen as the propellant for their LN2000 prototype air car. The researchers decided to use nitrogen because of its abundance in the atmosphere -- nitrogen makes up about 78 percent of the Earth's atmosphere -- and the availablity of liquid nitrogen. There are five components to the LN2000 engine: \n•A 24-gallon stainless steel tank. \n•A pump that moves the liquid nitrogen to the economizer. \n•An economizer that heats the liquid nitrogen with leftover exhaust heat. \n•A heat exchanger that boils the liquid nitrogen, creating a high pressure gas. \n•An expander, which converts nitrogen's energy into usable power. \nThe liquid nitrogen, stored at -320 degrees Fahrenheit (-196 degrees Celsius), is vaporized by the heat exchanger. The heat exchanger is the heart of the LN2000's cryogenic engine, which gets its name from the extremely cold temperature at which the liquid nitrogen is stored. Air moving around the vehicle is used to heat the liquid nitrogen to a boil. Once the liquid nitrogen boils, it turns to gas in the same way that heated water forms steam in a steam engine. \nNitrogen gas formed in the heat exchanger expands to about 700 times the volume of its liquid form. This highly pressurized gas is then fed to the expander, where t
542320
I would just recommend looking at a can and seeing what is the propellant.  We could guess all day, but as long as we don't work in a silly string factory we couldn't be absolute.  Alot of that kinf od informations i proprietary.  But how about this:\nPropellant\nSomething that dries fast (isopropyl)\nA plasticizer to keep the goo gooey\nsome other stuff
1133484
BEER!!!!\n\nDrink it at full throttle, til you can't read the label on the bottle.
843106
Liquid hydrogen (fuel) and liquid oxygen (oxidizer) are used in many applications for rockets. The one that comes to mind is the Centaur upper stage on Atlas-Centaur and Titan-Centaur expendable launch vehicles launced by NASA.\n\nThe fuel and oxidizer, which are gases at normal atmospheric pressure, are compressed to liquids under high pressure and low temperatures.
523169
The sugar in the mentos reacts with the carbonate in the coke causing gasses to form and pressure to increase inside the bottle, when this pressure is released the gasses will shoot out causing it to "rocket".
135990
These are just a few web sites that will show you different ideas.  Basically, they all involve mizing baking soda with an acid, whether it's leamon juice or vinager.  How exactly you want the rocket to look and what you want to shoot in the air is up to you.  Look at these sites to give you some ideas.  Have fun, and be safe!