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Topic: Rocket


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  Rocket - Wikipedia, the free encyclopedia
rocket is a vehicle, missile or aircraft which obtains thrust by the reaction to the ejection of fast moving exhaust gas from within a rocket engine.
After the war, rockets were used to study high-altitude conditions, by radio telemetry of temperature and pressure of the atmosphere, detection of cosmic rays, and further research.
Rockets became extremely military important in the form of intercontinental ballistic missiles (ICBMs) when it was realised that nuclear weapons carried on a rocket vehicle were essentially not defensible against once launched, and they became the delivery platform of choice for these weapons.
en.wikipedia.org /wiki/Rocket   (3029 words)

  
 Rocket (disambiguation) - Wikipedia, the free encyclopedia
A rocket is a vehicle, missile, or aircraft that creates thrust by expelling burned fuel (as exhaust) at a high rate.
Rockets (band), a French electronic rock band active mainly from mid 1970s to mid 1980s
The Rocket (newspaper), a defunct weekly newspaper in Seattle, Washington, and Portland, Oregon
en.wikipedia.org /wiki/The_Rocket   (264 words)

  
 Rocket - Home
Rocket will prepare the ground for future knowledge management RTD activities in the upcoming Framework programme by investigating future research challenges and creating a Vision and outlining a Roadmap showing how to implement the proposed model with a minimum of risk or social fallout.
The Third and Final ROCKET Workshop took place within the Framework of ICE 2003 (the 9th International Conference on Concurrent Enterprising), at the Dipoli Congress Centre, Otakaari 24, Espoo (Helsinki), Finland, on June 18th 2003.
The second ROCKET workshop brought together European experts from industry and academia to present and discuss the consolidated project results in the state-of-the-art of Knowledge Management, E-Learning and roadmapping, as well as the initial findings of the users’ requirement analysis and the vision statement.
rocket.vub.ac.be   (560 words)

  
 Solid Rocket Encyclopedia @ LaunchBase.net (Launch Base)   (Site not responding. Last check: 2007-10-22)
A Solid rocket or a solid fuel rocket is a rocket with a motor that uses solid propellants (fuel/oxidizer).
The earliest rockets were solid fuelled, powered by gunpowder, used by the Chinese in warfare as early as the 13th century.
Solid fuel rockets can be bought for use in model rocketry; they are normally small cylinders of fuel with an integral nozzle and a small charge that is set off when the fuel is exhausted.
www.launchbase.net /encyclopedia/Solid_rocket   (1058 words)

  
 NASA Quest > Space Team Online   (Site not responding. Last check: 2007-10-22)
Rockets that do not have the hollow core must be ignited at the lower end of the propellants and burning proceeds gradually from one end of the rocket to the other.
The fuel of a liquid-propellant rocket is usually kerosene or liquid hydrogen; the oxidizer is usually liquid oxygen.
As a basic principle of rocket flight, it can be said that for a rocket to leave the ground, the engine must produce a thrust that is greater than the total mass of the vehicle.
quest.arc.nasa.gov /space/teachers/rockets/rocketry.html   (3796 words)

  
 Rocket - MSN Encarta
Rockets are presently the only vehicles that can launch into and move around in space.
A rocket can be as simple and small as a firework, which has a small amount of thrust, or as complex and powerful as the Saturn V rocket, which took humans to the Moon.
British Congreve war rockets, which were used in the War of 1812, are referred to in a line of the United States national anthem: “And the rockets red glare…” Rockets have many applications both on Earth and in space.
encarta.msn.com /encnet/refpages/RefArticle.aspx?refid=761577900   (641 words)

  
 NASA Glenn Learning Technologies Project (LTP)
Today's rockets are remarkable collections of human ingenuity that have their roots in the science and technology of the past.
By the 16th century rockets fell into a time of disuse as weapons of war, though they were still used for fireworks displays, and a German fireworks maker, Johann Schmidlap, invented the "step rocket," a multi-staged vehicle for lifting fireworks to higher altitudes.
Nearly all uses of rockets up to this time were for warfare or fireworks, but there is an interesting old Chinese legend that reported the use of rockets as a means of transportation.
www.grc.nasa.gov /WWW/K-12/TRC/Rockets/history_of_rockets.html   (2198 words)

  
 National Association of Rocketry | Model Rocket Safety Code
If my rocket does not launch when I press the button of my electrical launch system, I will remove the launcher's safety interlock or disconnect its battery, and will wait 60 seconds after the last launch attempt before allowing anyone to approach the rocket.
I will launch my rocket from a launch rod, tower, or rail that is pointed to within 30 degrees of the vertical to ensure that the rocket flies nearly straight up, and I will use a blast deflector to prevent the motor's exhaust from hitting the ground.
I will launch my rocket outdoors, in an open area at least as large as shown in the accompanying table, and in safe weather conditions with wind speeds no greater than 20 miles per hour.
www.nar.org /NARmrsc.html   (504 words)

  
 The Evolution of Rockets
In the latter, the fuel gradually burned off (as it did in early gunpowder rockets), and the entire fuel container was under pressure, supplying hot gas directly to the De-Laval nozzle.
The military's rockets were larger and more ambitious, and the A2 which flew in 1934 developed a thrust of 16000 newton.
That rocket has been described as a "stainless steel balloon," keeping its shape with the help of pressurized gas in its interior, also used in pushing out the fuel.
www-istp.gsfc.nasa.gov /stargaze/Srockhis.htm   (1506 words)

  
 Rocket Principles
In the language of calculus, we say that the force is defined as the derivative of the momentum.
Rocket thrust results from the high speed ejection of material and does not require any medium to "push against".
Developing the expression for rocket thrust involves the application of conservation of momentum in an accelerating reference frame.
hyperphysics.phy-astr.gsu.edu /hbase/rocket.html   (253 words)

  
 Call centre, multimedia contact centre and PBX systems from Rocket Ansa-Call   (Site not responding. Last check: 2007-10-22)
Rockets extensive range of voice services has been specifically designed to meet the needs of any business, regardless of size, location, or level of technological development.
Rocket voice services leverage the strength and extensive reach of a global fibre-optic network, whilst providing considerable savings on call costs over traditional carriers.
Rocket's range of network driven solutions, IVR, intelligent routing and non-geographic numbering plans are the best available.
www.rocketuk.com   (293 words)

  
 booster rocket - Hutchinson encyclopedia article about booster rocket   (Site not responding. Last check: 2007-10-22)
First-stage rocket of a launching vehicle, or an additional rocket strapped to the main rocket to assist lift-off.
The US Delta rocket, for example, has a cluster of nine strap-on boosters that fire on lift-off.
This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional.
encyclopedia.farlex.com /booster+rocket   (171 words)

  
 Win98 Launches and Crashes
The launch took the rocket to about 1200 feet in altitude, where a series of catastrophic failures caused the vehicle to begin to disintegrate.
Post-accident analysis indicated that the rocket's elastic shock cord, previously expected to be strong enough for flight on a "D" engine, had been weakened in the previous flights, and was no longer strong enough to withstand this much more powerful ejection charge.
When the shock cord broke during the ejection, the parachute and nose cone separated from the rocket body, near the apogee of the flight at 1200 feet.
www.svlug.org /events/crash98.shtml   (944 words)

  
 Jetex.org: Plans - Rocket-powered Aircraft
As for the actual type of rocket to be employed, the plan advises the use of 1¢ aerial torpedoes.
He regarded twin boom craft as particularly "suitable for rocket drive", given that they had "plenty of space behind the centre of gravity, so that the efflux can be directed away from the model".
He also favoured tailless models as "suitable for rocket drive", since it was "possible […] to fit a rocket in the tail end of a model.
jetex.org /models/plans/plans-air-rocket.html   (1503 words)

  
 Rocket Car   (Site not responding. Last check: 2007-10-22)
I imagine he wanted to set the Rocket Car on the tracks across from the police station in the dead of night, then blow the horn and scream until a dozen cops came running out of the station to see what the ruckus was.
We drove back to the Rocket Car and found that Jimmy and Beck had already shoved one of my igniters into the JATO nozzle, attached the leads to the roll of field-phone cable with wirenuts, and were unrolling the cable away from the tracks.
But the Rocket Car was still exactly the same as it was when we left, back end hanging out of a pile of rubble with a rocket sticking out of it.
www.wagoneers.com /pages/RocketCar/rockit.html   (22748 words)

  
 ZOOM . activities . sci . Alter The Rocket | PBS Kids
The rocket should be attached on its side to the top of the car, and the car's wheels should roll easily.
When there is enough gas pushing inside the rocket, the cover and body are able to break free of each other and the cover goes in one direction and the body goes in the other.
When a rocket is launched on its side, there is friction, which is caused by gravity pulling down on the rocket and the ground pushing up on the rocket.
pbskids.org /zoom/activities/sci/altertherocket.html   (1697 words)

  
 John Kallend's rocket page
On the left is a NCR Bomarc flown on an F62 motor at the Park Forest Rocket Launch.
The rocket on the right is a scale model of an HV Arcas, being flown with a G64W motor at a CIA launch at Rantoul, Illinois.
It takes two rocket motors, one for launch and the other is ignited in the air by radio control.
www.iit.edu /~kallend/rock.html   (327 words)

  
 BIT::: ROCKET
Launching live from street location, BIT rocket is able to reach a height of over 600ft before parachuting safely back to crowd.
Rocket transmits a clear video stream to a local ground receiver; can be webcast live to web sites.
Documenting actual crowd attendance, BIT rocket provides demonstrators with accurate participation figures; active strategic data [location and containment strategies of opposing forces]; and a family aero-portrait.
www.bureauit.org /rocket   (173 words)

  
 Jupiter-C (rocket) Encyclopedia @ CompleteIdiots.com (Complete Idiots)   (Site not responding. Last check: 2007-10-22)
The second stage is an outer ring of eleven scaled-down Sergeant rocket engines; the third stage is a cluster of three scaled-down Sergeant rockets grouped within.
His method was the simplest and most immediate method for putting a payload into orbit, but as it had no upper-stage guidance, it was not put into a precisely specified orbit.
When used as a satellite launch vehicle, von Braun referred to the Jupiter-C as the Juno or Juno-I, to make it appear as peaceable as the Vanguard rocket, which was not a missile, that is, a weapon of war, but was developed from a weather study rocket.
completeidiots.com /encyclopedia/Jupiter-C_(rocket)   (1071 words)

  
 BBC News | SCI/TECH | Japanese rocket blasts off
The H-2A rocket is intended to establish a Japanese presence in the commercial satellite launch market, now dominated by the United States and Europe, but it has suffered repeated technical problems.
Last week, a problem with a valve in one of the rocket's engines was exacerbated by the arrival of Typhoon Pabuk, which prevented investigators from flying to the launch site from the mainland.
But the H-2 programme was cancelled in 1999 after the first-stage engine of the rocket cut out too early and the rocket was deliberately destroyed along with its $83m (£57m) satellite payload.
news.bbc.co.uk /1/hi/sci/tech/1514468.stm   (497 words)

  
 Rocket Equations   (Site not responding. Last check: 2007-10-22)
Barrowman Equations: determine the stability of your rocket by calculating the center of pressure - with spreadsheet example.
For model rockets don't worry about it, for high-power flights that go to five or six thousand feet (or more), get a rough estimate by using these equations with an average air density, and cross-check using a simulation.
Let's suppose the extreme case (for a model rocket) that the propellant is half the total weight of the rocket, or mp = mr = m.
my.execpc.com /~culp/rockets/rckt_eqn.html   (2888 words)

  
 Howstuffworks "How Rocket Engines Work"
Rocket engines are, on the one hand, so simple that you can build and fly your own model rockets very inexpensively (see the links on the last page of the article for details).
On the other hand, rocket engines (and their fuel systems) are so complicated that only three countries have actually ever put people in orbit.
In this article, we will look at rocket engines to understand how they work, as well as to understand some of the complexity surrounding them.
science.howstuffworks.com /rocket.htm   (150 words)

  
 BROADHEADS | Mechanical Broadheads, Bow Hunting and Archery Equipment from Rocket Aerohead
Rocket Aerohead Broadheads are not just the tip of your arrow; they offer superior penetration that will change preconceived notions about mechanical broadheads.
Rocket Aerohead Broadheads offer increased shooting accuracy and penetration using advanced broadhead design technology.
Rocket continues to dedicate resources to advance their broadhead technology year after year.
www.rocketaerohead.com   (335 words)

  
 MOON ROCKET DISTRIBUTION   (Site not responding. Last check: 2007-10-22)
It was great to catch up with comics friends and meet new people, and I'm feeling really motivated to sort out Moon Rocket, organise another Small Print and start some of the projects that have been sitting in my head for too long.
i'm proud of what moon rocket used to be, and i feel guilty that i am closing the catalogue, but i have decided that it's for the best.
Moon Rocket updates are syndicated by RSS to Livejournal, so you can add moonrocketnews to your friends list and keep up with updates that way: www.livejournal.com/users/moonrocketnews.
www.moonrocket.co.nz   (1121 words)

  
 The Rocket
By causing all the flame and heated air to pass through a great number of tubes surrounded by water, a very great and rapid means of heating the water is obtained as a very large heated surface is thus exposed to the water.
Former locomotives with only a flue through the boiler have never been able to travel faster than about eight miles an hour as they had not sufficient heating surface in the boiler to generate the steam for supplying the cylinder more rapidly.
The introduction of tubes into the boiler is one of the greatest improvements that has been made in the construction of locomotives, and was the cause of the superiority of the rocket engine to those that competed with it.
www.spartacus.schoolnet.co.uk /RArocket.htm   (849 words)

  
 www.myspace.com/rocket
The all-girl band mixes 60's girl group innocence with 70s decibel-damaging boulevard beat and 80s glam wham swagger, a volatile combination that leaves one wondering what the results would be if the Shangri-Las crash landed onstage at the Starwood during an early Motley Crue gig.
Starting out as a threesome of Laurens, Rocket released their first album in the summer of 2004.
Evolving into a five-piece rock n roll circus in 2005, their first-ever live show was a headlining, sold-out smash at the legendary Viper Room, while several other performances throughout the Los Angeles area and beyond have only furthered their choke-hold on the scene.
www.myspace.com /rocket   (1057 words)

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