Charlie

A simple rocket can be built of an empty Coke or lemonade plastic bottle. Partly filled with water and pressurized air the rocket can be blasted high up in the air. The pressurized air expels the water, which in turn creates the thrust to accelerate the rocket, counteracted by the air resistance and the weight of the rocket. Maxmum speeds are up to 200 km/h and the world record height is more than 300 m!

How Water Rockets work

The bottle is partially filled with water and sealed. The bottle is then pressurized with a gas, usually compressed air from a air compressor, or cylinder, but sometimes CO₂ or nitrogen from a cylinder.

Water and gas are used in combination, with the gas providing a means to store potential energy, as it is easily compressed, and the water increasing the mass fraction and providing greater momentum when ejected from the rocket's nozzle.

The seal on the nozzle of the rocket is then released and rapid expulsion of water occurs, at high exhaust speeds. Until the propellant has been completely expelled, and the pressure equalizes with atmospheric pressure, there is a net force created on the tank in accordance with Newton's third law. The expulsion of the water thus can cause the rocket to leap a considerable distance into the air.

In addition to aerodynamic considerations, altitude and flight duration are dependent upon the volume of water, the initial pressure, the rocket nozzle's size, and the unloaded weight of the rocket. The relationship between these factors is complex and several simulators have been written by enthusiasts to explore these and other factors .

Flying model rockets is a relatively safe and inexpensive way for students to learn the basics of forces and the response of a vehicle to external forces. A model rocket is subjected to four forces in flight; weight, thrust, and the aerodynamic forces, lift and drag. There are many different types of model rockets. One of the first and simplest

On the figure we show a generic launcher, although launchers come in a wide variety of shapes and sizes. The launcher has a base to support the rocket during launch. A hollow launch tube is mounted perpendicular to the base and is inserted into the base of the rocket before launch. The launch tube is connected to an air pump by a hollow feeder line.

The other part of the water rocket system is the rocket itself. Usually the rocket is made from a 2-liter soda pop bottle. Before launch, the bottle is filled with some amount of water, which acts as the "propellant" for the launch. Since water is about 100 times heavier than air, the expelled water produces more thrust than compressed air alone. The base of the bottle is only slightly larger than the launch tube. When the rocket is placed on the launch tube, the body tube becomes a closed pressure vessel. The pressure inside the body tube equals the pressure produced by the air pump. Fins are attached to the bottom of the body tube to provide stability during the flight.

Katerina's Rocket Site

Hi, welcome to my rocket site.
Here are some records of some rockets.

Let's get started. If you scroll down, you'll find a
ton of web sites, you'll have fun and you'll
learn something about rockets, you might even do a few of the projects.




Here are some web sites you could check:

http://www.nationalroboticschallenge.org/downloads/recources/Bottle_Rocket_Launcher.pdf
http://www.thinkgeek.com/geektoys/warfare/8a0f/
http://www.h2orocket.com/
http://www.rt66.com/~Korteng/SmallArms/bazsup.htm
http://www.soe.ucsc.edu/~karplus/abe/soda-bottle-rocket.pdf
http://www.digg.com/gadgets/Kid_builds_homemade_rocket_launcher.
http://www.rocketgaming.com/
http://www.popcap.com/gamepopup.php?theGame=rocketmania
http://www.2dplay.com/joe-the-rocket/joe-the-rocket-info.htm
http://www.xbox.com/en-US/games/b/boomboomrocketxboxlivearcade/default.htm
http://www.t45ol.com/play/618/rocket-game.html
http://physics.ucsc.edu/~snof/Game/index.html
http://www.redrocketgames.com/
http://www.boardgamegeek.com/game/204
http://members.aol.com/CHRISBOSCO/rocket.html
http://tri.army.mil/LC/CS/csa/kpm260.htm
http://javaboutique.internet.com/Rocket_Game/
http://www.mofunzone.com/online_games/rocket_car.shtml
http://www.iknowthat.com/com/L3?Area=TagAWord&COOK=
http://www.topgear.com/content/timetoburn/sections/games/08/game.html
http://ourworld.compuserve.com/homepages/pagrosse/h2orocketlauncherindex.htm
http://www.aircav.com/cobra/m260.html
http://hackedgadgets.com/2006/07/16/home-made-rocket-launcher/
http://www.playfirst.com/game/zenerchi;jsessionid=AED17B74DCA38877988171BDE5D50EB0.amras
http://www.primarygames.com/games2.htm
http://members.aol.com/StanDCmr/rocket.html
http://www.stevespanglerscience.com/experiment/00000143
http://www.space-rockets.com/newbook.html
http://spaceplace.nasa.gov/en/kids/rocket.shtml
http://members.aol.com/hayhurst1/h2orocket.htm
http://members.aol.com/hayhurst1/h2orocket.htm
http://www.playfuls.com/minigame_4076_Play_Rocket_Bike_game.html
http://www.jucaushii.ro/minigame_4076_Play_Rocket_Bike_game.html
http://inventors.about.com/library/inventors/blrocketpractical.htm
http://www.instructables.com/id/EBNZ97WF2NOBT3B/
http://www.ugoplayer.com/games/rocketwalrus.html
http://www.rt66.com/~Korteng/SmallArms/bazsup.htm
http://www.soe.ucsc.edu/~karplus/abe/soda-bottle-rocket.pdf
http://www.digg.com/gadgets/Kid_builds_homemade_rocket_launcher.
http://www.rocketgaming.com/
http://www.popcap.com/gamepopup.php?theGame=rocketmania
http://www.2dplay.com/joe-the-rocket/joe-the-rocket-info.htm
http://www.xbox.com/en-US/games/b/boomboomrocketxboxlivearcade/default.htm
http://www.t45ol.com/play/618/rocket-game.html
http://physics.ucsc.edu/~snof/Game/index.html
http://www.redrocketgames.com/
http://www.boardgamegeek.com/game/204
http://members.aol.com/CHRISBOSCO/rocket.html
http://tri.army.mil/LC/CS/csa/kpm260.htm
http://javaboutique.internet.com/Rocket_Game/
http://www.mofunzone.com/online_games/rocket_car.shtml
http://www.iknowthat.com/com/L3?Area=TagAWord&COOK=
http://www.topgear.com/content/timetoburn/sections/games/08/game.html
http://ourworld.compuserve.com/homepages/pagrosse/h2orocketlauncherindex.htm
http://www.aircav.com/cobra/m260.html
http://hackedgadgets.com/2006/07/16/home-made-rocket-launcher/
http://www.playfirst.com/game/zenerchi;jsessionid=AED17B74DCA38877988171BDE5D50EB0.amras
http://www.primarygames.com/games2.htm
http://members.aol.com/StanDCmr/rocket.html
http://www.stevespanglerscience.com/experiment/00000143
http://www.space-rockets.com/newbook.html
http://spaceplace.nasa.gov/en/kids/rocket.shtml
http://members.aol.com/hayhurst1/h2orocket.htm
http://members.aol.com/hayhurst1/h2orocket.htm
http://www.playfuls.com/minigame_4076_Play_Rocket_Bike_game.html
http://www.jucaushii.ro/minigame_4076_Play_Rocket_Bike_game.html
http://inventors.about.com/library/inventors/blrocketpractical.htm
http://www.instructables.com/id/EBNZ97WF2NOBT3B/
http://www.ugoplayer.com/games/rocketwalrus.html

After you visited all the sites you should know about rockets.

Peter's Great and Awesome Rocket Blog!!!!!!!!!!!!!!

Click here to go to Peter's Great and Awesome Rocket Blog!!

meleepker

Space shuttle Discovery is set to take off on December 7 from the Kennedy Space Centre. The planned space shot, which follows successful July and September missions, will mark NASA’s first night shuttle launch since the 2003 Columbia accident.




here is a example of a water rocket that was searched from a page called www.seeds2lrn.com/rocketsoftware.html
this website above helps student and rocketeers to understand the physics of water rockets and optimized their water rocket launch to their highest apogee.

The pace of technological progress in solid propellants—and explosives in general—was extremely slow. It was not until the middle of the 20th century that solid propellants for rockets made a sudden and dramatic leap forward.

in the early centuries rockets were rather small, and their use was confined principally to weaponry, and fireworks displays.





Around the 1720, A dutch professor built vehicle propelled by jets of steam.

A water rocket is a type of model rocket using water as its reaction. The pressure vessel the engine of the rocket is usually a used plastic soft drinks bottle. The water is forced out by a pressurized gas, typically compressed air.

Rockets are used for and weaponry, as launch vessle for artificial satellite, and for human spaceflight and exploration of other planets. While they are inefficient for low speed use, they are, compared to other propulsion systems, very lightweight.

in modern times people mostly use rocket for exploring space and firework.

Newton's first law of motion: an object at rest will remain at rest and an object In motion will remain in motion at constant velocity unless acted upon by an unbalance force.

Newton's second law of motion: Force = mass x acceleration.

Newton's third law of motion for every action there is an equal and opposite reaction. Newton's three laws of motion is apply to my rocket because when the rocket accelerate mass is created then the motion of the rocket will remain in motion until acted upon by an unbalance force.

Andre' s Blog

Welcome to my web page

This web page is about a rocket test which is executed on 26th, July, 2007

History of Rockets
The history of Rockets began in 1241 BC by Genghis Khan's Mongolian army as he stole Chinese technology for his army. The rockets were first used at the Battle of Sejo. A man named Wan-Hoo placed 47 rockets tied to a chair and 47 servants ready to light the rockets. When the fog cleared, the man disappeared. Europe then found Chinese gunpowder and used it for the European Empire. Korea then began building gunpowder arrows, which can blow up as it touches anything, the arrows were equipped into Singijeon. Later on, the Ottoman Empire (Turkey) used the gunpowder for the Ottoman Empire's army with the toughest unit, the Great Bombard. The Great Bombard was a big cannon unit that can take down a quarter of the army but the bad advantage is that it is a slow unit



We make rockets using Hydrogen (water) to launch the rocket to the sky with air compressing the water in the 2 litre water bottle by using a air pump
Here is a link to learn more about the air compressing water:
http://www.mpsomaha.org/mwhs/SCIENCE/Water%20Rockets/How%20to/howrocketsfly.htm

We begin with building the rocket with your own choice but it is required to use 2l bottles.
Here is the website to build your hydro rocket
http://www.ast.leeds.ac.uk/%7Eknapp/rockets/

As you begin to make your second head so you can insert the parachute. Build your own style of a rocket parachute as the rocket will run out of air and water.

Link to National Aeronautics and Space Administration
http://www.nasa.gov/



Here is a example of a Hydro Rocket attempt

http://www.youtube.com/watch?v=Oszxz1OyhnU&mode=related&search=

and a real fuel rocket test

http://www.youtube.com/watch?v=WelGeko_0ls

Here is a movie clip of Issac Newton's 3 laws of motion from www.Brainpop.com (requires brainpop Membership

http://www.brainpop.com/science/motionsandforces/newtonslawsofmotion/


Construction of the altimeter
To construct the altimeter, you need a protractor, a 8 inch string, a fresh rubber, sellotape and a straw. You begin with taking your protractor and put the line through the small hole and tie a knot.


Here is the Result Table on the 26th of July 2007' s launch day

Jerry

I think rockets are a little bit dangerous. If you didn't make the rockets perfect the rocket may explode and the people inside may die. Sometimes if a beginner doesn't know what to do with the rocket and tries something wrong and presses a incorrect button the rocket may explode and a person may die.

I'm in a Hydro Rocket class where we are learning parachutes, rocket design, and the rocket recovery system. We are also learning about how the rocket will fly in the sky. Today we learned about how to use a protractor in order to learn how high a rocket goes. We have also learned about pumping air inside a 2 liter bottle there is white smoke that comes out when you take the cap off the bottle. This is matter gas and liquid.

I like Hydro Rocket class a lot because you can learn about experiments and we learn how to make rockets and parachutes.

Our rocket results:

	Distance from Rocket	Angle of Altimeter	Rocket Height at Apogee	Time to Apogee	Time from Apogee to ground
Jerry Launch #1	100 ft	unknown	unknown	1:25sec	unknown
Launch #2	100 ft	unknown	unknown	unknown	unknown
Launch #1	100 ft	unknown	unknown

Phillip

Welcome to my web page.

This web page is about test our Hydro rocket.
we are making an rocket using water,

This model shows what you get if you simply up the size of the body.





This is flight of a water rocket. You see how to flight first and then it's coming down.If you want to see more information how to flight of a water rocket, you see bottom of this picture,you can see 1 water rocket site if you click it you can go to the water rocket site.It's not best one but you will enjoy.
http://exploration.grc.nasa.gov/education/rocket/rktbflght.html

This site is good one too. You can see two can rocket and many other thing. I think 1 student made this site and this kid made a rocket.I hope you enjoy.
http://www.water-rockets.com/main.shtml

This picture from http://www.thinkgeek.com/geektoys/science/86c3/

Blast Off with Hydrogen

Hydrogen may be a fuel which will save our power-hungry future, but we know what it's really good for: blowing stuff up. The Hydrogen Fuel Rocket uses hydrogen to launch a rocket up to 200 feet in the air (hence its name!) Even better, this rocket is very easy to set up and use. There is no gluing and with only minimal assembly, you'll have the rocket launcher assembled in about one minute. Mix the Propellant Crystals (Citric Acid) with water, and you have your rocket fuel. Time to find a good launch site!

The ignition button is a big red handheld button, and there aren't words to describe how satisfying it is to press it and watch your rocket disappear into the sky. Don't worry, each rocket set has enough fuel for many, many flights - one packet of crystals makes one bottle of fuel, which can be used multiple times. To make the deal even sweeter, there's a coupon inside for 2 free rockets (you just pay a few bucks for shipping - US and Canada only). Think of it: you can now launch stuff into the sky and know you are saving the environment from normal rocket fuel pollution. It's a green way to blow things up!
This something about this site . i hope you enjoy!!!!!!*^^*

This is water rocket
you could see air, water, and many other thing.







If you finish reading try make your own your 'HYDRO ROCKET'















'If your rocket is going like this way you should think your rocket is not good.....'
Watch your rocket how
far your rocket going.

If your rocket come down go run to catch your rocket!!
















if your rocket was bad try again in your home!!<WARNING! but it's dangerous to blast off in your home!>













If you blast off your rocket let's go get your rocket!!
If your rocket was bad let's think why it happend.
it can be your wings, it can be your rocket body, it can be nose corn.

If you think your finish let's play some games!!


AH HA! before that lets show rocket your parent or anybody!!!

My Distance fron rocket:100 ft / Angle of altimeter:50 / rocket height at apogee:40 /unknown

My Distance fron rocket:100 ft / Angle of altimeter:unknown rocket height at apogee:unknown

Taylor's Distance fron rocket:100 / ft Angle of altimeter:64 / rocket height at apogee:unknown

Taylor's Distance fron rocket:100 / ft Angle of altimeter:unknown / rocket height at apogee:26/unknown







"TADA!!!!! i finish my HYDRO ROCKET!!!!!!!!"