Naked Science Forum
General Science => General Science => Topic started by: Naufal the B. S. on 28/07/2009 07:54:29
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...and put mini webcam and radio in it?
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Reach space! Cheap! No way!
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I've just read an article. Yes, the solid propellant can't make the rocket reach space. It need hundred solid propellants for reach space. But, if i choose the liquid rocket propellant, it will blast off until space.
Is it true?
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Maybe if you had a couple of million dollars to play around with it could happen.
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If so... How many the maximum altitude of my bp rocket?
And, where altitude that have zero gravity?
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Zero gravity = space
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If so... How many the maximum altitude of my bp rocket?
If you BUY some potassium nitrate which is 99.8%-99.9% pure, you might get ~100m(?) max. [:-\] But I'm just guessing because I have no idea how big your rocket is and how on earth you are planning to make it.
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Where the altitude that has zero gravity?
Space = zero gravity
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Where the altitude that has zero gravity?
Probably somewhere way outside the Solar System!
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You can't get zero gravity anywhere in the universe - it's everywhere, to a greater or lesser degree. What you can achieve though, is free-fall. You can get short-term free-fall by using a sub-orbital parabolic flight, as with the 'vomit comet' astronaut training flights, or by achieving orbit. For a low Earth orbit, I think your rocket will need to achieve a speed of around 8 km/s by the time it reaches its orbital altitude. You'll need to be able to control the flight somehow too.
If you do manage to get something up in to low Earth orbit a lot of people/countries will be very annoyed with you unless you're doing it as part of an officially planned and sanctioned program; you'll not only be adding to the huge amount of stuff that's already floating about up there but also risk damaging someone else's stuff, not to mention the risk of being though of as a potential terrorist.
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Do you think $10000 to $100000 or so is cheap?
http://www.newscientist.com/article/dn5005-first-amateur-rocket-blasts-into-space.html
If they could have done it for less they would.
Do you think you can do better?
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If so... Where altitude, that has been called space?
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About 100 km
http://en.wikipedia.org/wiki/Outer_space#Environment
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10000$!!
What it makes worth till 10000$!?
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It was seven metres tall.
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Diameter?
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You can watch the launch here
http://www.the-rocketman.com/CSXT/video/default.asp
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I don't yet to watch that video. But, is rocket that reach seven meter tall without payload? Is it full filled by fuel?
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You might want to look at the photos
http://www.the-rocketman.com/CSXT/galleries/launch/pages/csxt%20152_liftoff.html
But it's sure as hell not gunpowder.
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Thanks!!
Is it solid propellant?
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The rocket was equipped with a $20,000 solid-propellant motor, which is the largest built by amateurs. The motor was to launch the rocket into space just 15 seconds, after obtaining speeds as fast as Mach 5.
http://en.wikipedia.org/wiki/Civilian_Space_eXploration_Team#Space_Shot-_2002
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Doesn't it get burned with Mach 5 speed!!!?
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That might be why it didn't work in 2002. I doubt it though.
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Zero gravity = space
near zero gravity = DEEP space (not just in orbit)
LeeE
Free fall OR orbit?
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I'm not sure I understand your question SC. You'll be in free fall in orbit.
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Re large non-commercial rocket launches, it's worth having a watch of this if you haven't ever seen it before:
http://www.youtube.com/watch?v=_b4WzWFKQ20 (http://www.youtube.com/watch?v=_b4WzWFKQ20)
I can't help wondering how they would have got if it hadn't been for the 'payload'
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Can i make cheap rocket ... and put mini webcam ... in it?
This one looks like a length of plastic drainpipe ...
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In free fall (including orbit) there is no overall effect of gravity.
I can see how an amateur rocket can achieve freefall, but I can't imagine one getting into orbit anytime soon.
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A balloon gives more height per dollar than a rocket...
[ Invalid Attachment ]
Out of this world: British teddy bears strapped to helium weather balloon reach the edge of space
By Andrew Levy and Claire Bates
Created 10:56 AM on 04th December 2008
It's not often that Britain can claim a win in the space race. But these teddy bears drifting nearly 20 miles above Earth have become the first soft toys to take part in extra-vehicular activity (to use correct NASA jargon) at such an altitude.
http://www.dailymail.co.uk (http://www.dailymail.co.uk/sciencetech/article-1091896/Out-world-British-teddy-bears-strapped-helium-weather-balloon-reach-edge-space.html)
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If my rocket launched to go into space, will it burned because of atmosphere and it's velocity?
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If your rocket is not going very fast then it won't burn up on the way down.
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Frankly, I doubt your rocket will reach space or any where near it so you can stop worrying! [:D]
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Is it could!?
In order to make me stop worrying!
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Is it could!?
In order to make me stop worrying!
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What are you making it with?
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You've just spoke if the rocket could reach space. You're confusing!
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How many fuel (solid) do I need to make my rocket enter the space?
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Nauful: you really need to spend some time researching rocket science, not asking vague questions on this forum. No one here is going to design your rocket for you. For example, asking how many(?) solid fuel boosters you need is meaningless without knowing how much mass you want to propel, how powerful your boosters are and how long they will burn for.
I'm sure that we're all very interested in your experiment but you just can't get the detailed answers to the questions you're asking here.
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Sorry
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Ok... And the conclusion, i'll NEVER NEVER see my rocket into the space FOREVER.
Thanks for your informations, i'll close this thread.
I'm pessimist
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Hey hey, do you remember about the first man reach space? Yes, gagarin. The rocket just flied at 327m altitude, and it's called REACH SPACE!
Whereas, space = 100 km altitude.
How with it!?
Sorry for my bad speak
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The rocket just flied at 327m altitude, and it's called REACH SPACE!
Who on Earth told you that??
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It clearly says:
Apogee: 327 km
http://en.wikipedia.org/wiki/Vostok_1#Mission_parameters
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Some book
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Well the book is obviously wrong I'm afraid
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The top of this
http://en.wikipedia.org/wiki/Eiffel_Tower
is not in space.
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I think so
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Are you guys posting out of sync or something?
This thread has started to read like a Two Ronnies sketch.
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What's your purpose SC!
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I'd just like to know where you are going with this thread, Naufal. It's confusing me.
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The top of this
http://en.wikipedia.org/wiki/Eiffel_Tower
is not in space.
Obviously, wiki says it's at 324 m, so less than 327 m [;D].