If I want to built  spaceship to travel in space , what 3 important things I need to keep in mind befor design
348607
besides the obvious from above answers, you need the following design specs....\n\na ship that is air tight,\na ship that will protect the occupants from radiation,\na ship that is able to withstand extreme cold & heat,\na ship that is structurally strong from pressure
540558
Design, Design, Design\n\nIf you try to Plan the manufacturing, you will never see the product released. \nPlanning is only going to work with parts which have been properly designed. The design must take in consideration of manufacturability. You can design on paper something that can Never be manufactured.\n\nThe design must follow good manufacturing practices. Be able to be Tested and meet some kind of standard.\nThe design must have Component Eng, Mfg Eng, Quality & Purchasing all working together upfront. Not after the fact.
682737
Being an astronaut would ROCK! Unfortunately the odds of becoming a 'high flier' are pretty slim, you have to be like a specialist, have a stack of degrees, and probably be someone's relative. Nonetheless, being one of the people that grew up watching movies like 2001: A Space Odyssey, and getting to see the shuttle launch for the first time on TV, I'd jump at the chance to do it, if nothing else to say I'd done it. Unfortunately, NASA produces lots of other things besides missions into space, chances would be better waiting for Spaceship Two etc. I fully believe Dick and Burt Rutan will continue to set records and new benchmarks for space travel. If not them, then wait for Honda, they'll build something that'll do laps around the moon AND get 40 MPG(hwy.) LOL
79516
engines for space craft don't need to constantly exert forward thrust to keep going, like airplanes. They need to to escape the earth's gravity, but once cleared, they can keep going on forward momentum, using brief propulsion to correct the course of the space craft. \n\nMars and the moon cannot use gasoline based craft, there's no oxygen to burn, so they likely need electric motors, maybe solar powered. Not exactly sure on this but I would say an electric motor of sorts.
304939
Going back to a capsule type system definately seems like a strange step.  \n\nBut as far as getting an effective system flying in a low budget enivronment, it is probably a good choice.\n\nI think seperating the cargo and crew flights is a good idea.\n\nI would like to see more alternative methods of getting man & material into space such as the high altitude drop then rocket burn of the Spaceship1, or the space elevator.
880695
Think of a spacecraft flying in orbit like a swinging pendulum.  You need energy to get it started, but once it is oscillating, it will stay in that state for a long time.  If you wanted to increase or decrease the pendulum oscillation that would require energy too.  But once it is in a new oscillation cycle, it will tend to stay there.\n\nSimilarly, a spacecraft needs to burn a lot of fuel to get *into* or *out of* an orbit.  Staying in a particular orbit requires very Little energy.  If there were no momentum losses, then staying in orbit would require no energy.\n\nAn orbit is an ellipse with a massive body (like the Earth) at one focus.  Ellipses are like flattened circles.  The higher the eccentricity of the ellipse, the flatter it is.  The Earth's orbit around the Sun has a very low eccentricity and is therefore quite circular. \n\nSo long as a spacecraft is flying in an ellipse  shaped orbit then it needs almost no energy to stay there.  If it needs to maneuver (like the shuttle docking with the ISS) then it needs to fire its thrusters to slowly change its orbit to match the object it is trying to rendezvous with.\n\nSuppose you wanted to escape Earth's gravity.  You fire thrusters for 10 seconds.  Now your orbit is a flatter ellipse; your eccentricity just increased.  However, you are still in orbit around the Earth.  Part of your orbit may be far away from the Earth, but you are still under influence of Earth's gravity.  You will realize that there is a critical speed -- called the escape velocity -- which will allow you to go so fast that the Earth cannot pull you back.  This is like swinging a pendulum so fast that instead of rocking back and forth about a point, it just spins in circles.\n\nThe important concept here is that gravity does not stop pulling on you when you leave Earth's atmosphere.  All spacecraft in Earth orbit are feeling its gravitational pull.  However, they are all in a state of perpetual free fall.  They are falling towards the Earth, but at the same time they are moving around it fast enough that they keep 'missing'.  This is the same as if you took a ball on a string and spun it around in a circle.  The string has tension; the ball is accelerating toward you.  But its velocity is in the direction of travel (along the circumference) so it stays in a circular path.
242203
air plane is not design for outerspace. From the word itself AIRPLANE, it need air and we all know there no air out in space.
526395
Lost on the Moon\nLogic constructions; reasoning & evaluation skills\n\nYour spaceship has just crash-landed on the moon.  You were scheduled to rendezvous with a mother ship, 200 miles away on the lighted surface of the moon, but the rough landing has ruined your ship and destroyed all the equipment aboard, except for the 15 salvageable items listed below.\n\nYour survival depends on reaching the mother ship, so you must choose the most critical items available for the 200 mile trip.\n\nYour task is to rank the 15 salvageable items in terms of what you think is important to your survival, starting with “1” as the most important.\n\nList of Salvageable ItemsIndividual RankingGroup RankingNASA’s Ranking\nBox of Matches\nFood Concentrate\nFifty feet of Nylon Rope\nParachute Silk\nSolar Powered Portable Heating Unit\nTwo Paintball Guns\nOne Case of Dehydrated Milk\nTwo 100-pound Tanks of Oxygen\nStellar Map of the Moons’ Star Field\nSelf-Inflating Life Raft\nMagnetic Compass\nFive Gallons of Water\nSignal Flares\nFirst Aid Kit\nSolar Powered FM Receiver-Transmitter\n\nIf you get me your email address, I will send you the word document.\n\nI don't have NASA's rankings on me, they are at school.  I use this activity every year, the kids really seem to like it!
660694
Here's one way.  I built something like this when I was 11.\n\nI dont need to say the obvious about not cutting off your fingers, poking your eyes out, or gluing your hands to the table do I?\n\nie I'm assuming you're capable of doing the below safely.\n\nyou need:\n\n2 big wheels\n1 smaller wheel (you can always make wheels from cardboard and balsa)\nThe biggest propeller thats fits.\nelectric motor\nlantern battery (big square thing with springs on the top)\nSome 1/8" thick balsa sheet.\nsome dowel which fits in the wheel.\nwire\nA wide necked plastic drinks bottle - Sunny D maybe?\nsticky tape \nhot melt glue \nlong drawing pins/nails\n2 x 10-20 ml syringes and a length of narrow bore plastic tube.  (doctors surgery might give you two syringes if you ask nicely an the tube is used on fish tanks)\n\n\nThe plastic drinks bottle is going to be the chassis for your car.\n\nyou need to cut the following holes in it\n\n- small hole in the lid \n\n- Big hole in the side just smaller than the tennis ball\n\n- Small hole for the wires from the motor\n\n- small rectangle opposite the big hole, near the bottom of  the bottle, same width and length as the small wheel.\n\n- 2 small holes the same diameter as the dowel further up\n\n\nHot melt the motor to the inside of the lid with the shaft sticking through the hole.\n\nSecure the propellor to the front of it. \n\ncut two long lengths of wire.  Strip the ends and twist one wire around each of the terminals on the motor.\n\nFit the cap, motor & propellor wires.  push the motor wires though the bottle.\n\nPut a short length of dowel through the small wheel and then hot melt it inside the plastic bottle so the wheel sticks down through the hole you made.\n\nStick a long piece of Dowel through the two small holes at the front.  And pin the wheels on the axles.  All the Wheels rotate freely.\n\nHot melt  another piece of dowel to the bottom of the bottle so that it sticks up vertically.\n\nMake a rudder out of the 1/8" balsa. say 6" high and 3" deep.  Near the bottom stick a 1/2" long piece of dowel so that pokes out at 90°.\n\nTape the balsa to the vertical dowel along one side only so that it will hinge.\n\nHot melt a syringe to the top of the bottle so that the plunger is facing the rudder.  Attach a piece of dowel to the syringe plunger and then to the short bit of dowel sticking out of the rudder.  the rudder end needs to be able to move  ie pinned together.\n\nConnect the syringe to the plastic tube.\n\nWrap the wire from the motor and the tube together with tape to make an umbilical cord. \n\nconnect the other end of the tube to the syringe\n\nConnecting the battery up will give you forwards and reverse and pushing the syringe in and out will give you steering.\n\nThe tennis ball will just sit in the hole on top.
986287
Walking, or any other form of non-airborne locomotion - you'd have to swim through the air\n\nCooking would be a bit complicated, everything would have to be contained. And forget a bowl of cereal.  Solid food would have to be in chunks, liquids in a pouch.\n\nCleaning up afterwards would be tough - how do you keep the hot soapy water in the sink?\n\nThink of all the things that would have to be restained from floating around as you go about your daily business.\n\nSleeping might be a bit more comfortable though, as long as you're tethered so you don't bump into walls all night long.\n\nAll in all, it would be similiar to life aboard a non-rotating space station.
899869
Step 1   Become wealthy beyond you wildest dreams\nStep 2   Build a rocket ship\nStep 3   Learn to pilot said ship\nStep 4   Get all necessary permissions from air authorities to fly\nStep 5   BLAST OFF !\n\nThere you go \nI think it will take 5 steps then\nI hope this has helped\nbut you may need a few more to get back to tell you mates you made it, or how are we to believe you (you might want to bring back a rock or something)
1184993
Good question. \n1. I'd like to build or make something significant. \n2. Maybe show that thing to any future kids.\n3. Step out of the ratrace again for a little while, maybe forever.\n4. Learn a 4th language.\n5. Cross a continent under my own steam.\n\nThese are obviously subject to change. I reserve the right to retract, add or ignore any of these at any time.
179509
you can get those wire coat hangers and put like a lot of different spherical shapes in there representing the different planets..and put each in a different hanger connecting to something in the center of like a base so that it could"orbit"
13706
There are way to many factors to give an answer..\nWhat is the hull design? Weight? What is your goal? top speed?? are you willing to sacrifice your hole-shot for a few mph? approx shaft hp of motor? what RPM range will the motor be operating in?\n\nContact a reputable prop manufacturer. ie Oakland Johnson
1173168
Space Transportation System
130717
A space craft is a vehicle that travels once in space. A   rocket is just a big, hot engine that is used to propel the space craft outside of Earth's gravitational pull. \n\nGood Luck!
381192
Rocket Principles\nA consquence of Newton's laws of motion is that for any object, or collection of objects, forces which only involve those objects and nothing else ("internal forces") cannot shift the center of gravity. For example, an astronaut floating in a space suit cannot shift his position without involving something else, e. g. pushing against his spacecraft. The center of gravity--or "center of mass"--is a fixed point, which cannot be moved without outside help (turning around it, however, is possible).\n\nBy throwing a heavy tool in one direction, the astronaut could get moving in the opposite direction, though the common center of gravity of the two would always stay the same. Given a bottle of compressed oxygen, the same result follows from squirting out a blast of gas (a scene that appeared in an early science fiction film). A rocket does much the same, except that the cold gas is replaced by the much faster jet of glowing gas produced by the burning of suitable fuel. At present, rockets are the only means capable of achieving the altitude and velocity necessary to put a payload into orbit.\n\nA rocket engine is a machine that develops thrust by the rapid expulsion of matter. Most rockets today operate with either solid or liquid propellants. The word propellant does not mean simply fuel, as you might think; it means both fuel and oxidizer. The fuel is the chemical rockets burn but, for burning to take place, an oxidizer (oxygen) must be present. Jet engines draw oxygen into their engines from the surrounding air. Rockets do not have the luxury that jet planes have; they must carry oxygen with them into space, where there is no air.\n\nThere are a number of terms used to describe the power generated by a rocket. \n\n\nThrust is the force generated, measured in pounds or kilograms. Thrust generated by the first stage must be greater than the weight of the complete launch vehicle while standing on the launch pad in order to get it moving. Once moving upward, thrust must continue to be generated to accelerate the launch vehicle against the force of the Earth's gravity. To place a satellite into orbit around the Earth, thrust must continue until the minimum altitude and orbital velocity have been attained or the launch vehicle will fall back to the Earth. Minimum altitude is rarely desirable, therefore thrust must continue to be generated to gain additional orbital altitude.\n\nThe impulse, sometimes called total impulse, is the product of thrust and the effective firing duration. A shoulder fired rocket has an average thrust of 600 lbs and a firing duration of 0.2 seconds for an impulse of 120 lb-sec. The Saturn V rocket, used during the Apollo program, not only generated much more thrust but also for a much longer time. It had an impulse of 1.15 billion lb-sec.\n\nThe efficiency of a rocket engine is measured by its specific impulse (Isp). Specific impulse is defined as the thrust divided by the mass of propellant consumed per second. The result is expressed in seconds. The specific impulse can be thought of as the number of seconds that one pound of propellant will produce one pound of thrust. If thrust is expressed in pounds, a specific impulse of 300 seconds is considered good. Higher values are better. A rocket's mass ratio is defined as the total mass at lift-off divided by the mass remaining after all the propellant has been consumed. A high mass ratio means that more propellant is pushing less launch vehicle and payload mass, resulting in higher velocity. A high mass ratio is necessary to achieve the high velocities needed to put a payload into orbit.\n\nThere are three categories of chemical propellants for rocket engines: liquid propellant, solid propellant, and hybrid propellant. The propellant for a chemical rocket engine usually consists of a fuel and an oxidizer. Sometimes a catalyst is added to enhance the chemical reaction between the fuel and the oxidizer. Each catego