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Homemade orbital rocket?
how to identify plants for food,medicine,chemical needs
It might work but at the same time you got to understand that the weight you're talking about will become a huge bullet when it falls back to earth. - EliezerC
Not only could he simply not use a phone at all... since cellular is limited to roughly 10 miles above the surface of earth. Radio would be HIS only option realistically. But then, this project is far from realistic in just about every way from the VERY LITTLE I know about space. Solar cells are more than reasonable if you plan to head to mars or just about anywhere near the sun. Hell even a few trips in the opposite direction would be fine if you could have a large enough solar array and somehow maintain an orbit somewhere to capture that light. As for David's response to the RTG. I'm not sure he would be able to acquire a beta emitter, aside from the dangers of handling it. I know very little of beta emitters but i can say that the RTG's in the voyager missions work for a hell of a lot longer than 10 years. Granted they run plutonium 238, they were still able to acquire around 450 watts of power at time of launch. It's half life is like 80 years. To put it in perspective we launched those missions in the late 70's and they don't expect total equipment failure until 2025 at the earliest. 50 years and that's NASA's safety number. If you want to orbit earth for a few minutes and drop. Build a rocket ship. If you want deep space travel... then you need to design around deep space conditions. Which means nuclear powered, and ION thrusters. Also wanted to add. The speed at which everyone is mentioning as a needed speed for orbit is not entirely correct. It's the speed required for your average LEO craft. Speed and altitude for orbit are a product of mass. Light objects, which are affected less by gravity would need less inertia (speed) to stay in orbit. Likewise, a larger distance from the earth would have a similar effect, less inertia required. PS If you had this capability. NASA would hire you. And i'm not knocking you i'm just being real. Unfortunately the average citizen just doesn't have the resources for something like this. - TonyK33
Also wanted to say, though iv'e never worked on an RTG i have used Thermocouples in both TEG and TEC form. Very cool stuff, simple and easy to use. - TonyK33
Use gravity :) Suspend 4 wires below the balloons to a central hanging weight. Might keep a center section stable enough. It would act like a pendulum in the air, and regardless you are correct it would still be quite unstable. Not nearly stable enough to calculate a trajectory for which to exit the atmosphere.
Ps i dout ull make it to a wome hole or mars !dont get ur hoped to high!
Not sure why you need the phone. Why not radio? You might need to unroll a long antenna wire, like with a fishing reel or something. Use a hash tables of Morse to translate sensor readings then burst the signal. While near the sun, solar cells should help, but you'll soon need an RTG (radio isotope thermoelectric generator) or you could try my design , which uses tritium light tubes held close to solar cells. You can salvage emergency exit signs for the tritium. You could possibly build an rtg using a beta emitter, not as powerful but youd probably save a bundle and your family jewels developing the unit in your garage! While the rocket part is cool, recharging the batteries far from the sun would be a problem. Even an rtg is good for like 10 yrs, getting weaker each year. You'll have a dead brick flying through space, bug it'll b your brick!!!
If you would to make it homemade, you would most likely need a three stage unless you can pull a rabbit out of you hat a make it two stage to acheive 17,000 mph to achieve LEO. Also I like the idea a trans-martian injection
I'm actually working on a project like this myself, I'm making aircraft for a powered ascent to 40,000 meters to clear the rocket itself of lot's of drag.
I think your problem here is summed up in the last two sentences of step 3.
truley free electricity
sorry to disappoint you on some of this but you cant hear anything from space, as there is no air (or anything) to convey it, and sound is just vibration. so you cant really take vibrations from nothing, or else nasa or private space/government space exploration groups would be sending us ringtones and songs, and within the day they did this there would be a remix, (ignore that last part about remixes) but otherwise i like the idea, if somehow you managed to get an infra-red/ U-V sensor it would be ten times cooler.
and you would run out of air after a while so, maneuvers, not the best idea, plus their is no reason to maneuver unless you plan on orbiting, and you would probably also need solar power to power all of this. and 'furthest reaches of the galaxy' is unrealistic, unless you mean eventually (by the time it got out of our solar system, you might not be around to witness it), but still, i like it, it just isnt something you through yourself into without a LOT of research, but i am assuming thats why you came here.other things:wormholes are theory (and on the losing side of the debate) + they wouldn't be within our reachif by mars you mean orbiting mars, then yes, you will need 'Maneuvers', otherwise, just a really big parachute (because the atmosphere is 100 times less) to support the rocket on its descentcommunication would not be easy, unless you ask nasa to borrow one of its satelites (if you actually make it to space they probably wont have a problem) and still it would need a communication device (cellphones wont work at all) most likely its own dish.
this whole thing would be really expensive, and there is always the chance that you might: hit an airplanehave it explode/overheatnot even make it to space (you would really need a parachute) + if it comes back down, it could land any where (almost) and if it lands somewhere in water, say bye-bye money, unless you have some 'maneuvers' up your sleeve, and you would also need a global positioning service (GPS)anything that ever happened to nasa or other space exploration organizationsetc.
although i like the idea, it is near impossible, and certainly impossible at a low budget (by that i mean lower then any other organization) but there is still a chance for this to happen- study to be a rocket scientist and then join an organization as a 'rocket scientist'
Maybe a launch platform stuffed inside the balloon. Some weight would also need to dangle beneath the balloon to keep it upright; maybe some launch mechanics/electronics? A flame would not likely burn inside a helium balloon (and really, you wouldn't want it to; you'd get a large fireball) so a spring-loaded platform with a pointy tip, and the rocket would burst through the top of the balloon, after two seconds fire the first stage. That still only gets you 18-37km into the atmosphere; you need to achieve 160km for low earth orbit. So it'd be a big project.
This is actually a common misconception. Rocket engines do not need atmospheric oxygen at all. Small estes motors use black powder, which uses potassium nitrate as the oxidizer. The exhaust gasses are already fully oxidized when they leave the engine. Similarly, larger engines use a propellant mixture called APCP (Ammonium Perchlorate Composite Propellant) which uses ammonium perchlorate as the oxidizer. This also produces fully oxidized exhaust using only the oxidizer contained in the propellant.However, you are correct about these engines not working correctly at high altitudes. The nozzle shape must be optimized for one specific external pressure, or they lose lots of thrust. Using an engine designed for 1 atmosphere of ambient pressure way up near space will reduce your thrust (and thus efficiency) by roughly half.
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