Can i make cheap rocket that can reach space...

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Offline Naufal the B. S.

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Can i make cheap rocket that can reach space...
« on: 28/07/2009 07:54:29 »
...and put mini webcam and radio in it?

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Offline Chemistry4me

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« Reply #1 on: 28/07/2009 07:59:36 »
Reach space! Cheap! No way!

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Offline Naufal the B. S.

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« Reply #2 on: 28/07/2009 08:11:14 »
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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Offline Chemistry4me

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« Reply #3 on: 28/07/2009 08:13:32 »
Maybe if you had a couple of million dollars to play around with it could happen.

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Offline Naufal the B. S.

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« Reply #4 on: 28/07/2009 08:30:18 »
If so... How many the maximum altitude of my bp rocket?
And, where altitude that have zero gravity?

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Offline Naufal the B. S.

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« Reply #5 on: 28/07/2009 08:31:41 »
Zero gravity = space

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Offline Chemistry4me

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« Reply #6 on: 28/07/2009 08:40:07 »
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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Offline Naufal the B. S.

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« Reply #7 on: 28/07/2009 09:01:04 »
Where the altitude that has zero gravity?
Space = zero gravity

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Offline Chemistry4me

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« Reply #8 on: 28/07/2009 09:07:32 »
Where the altitude that has zero gravity?
Probably somewhere way outside the Solar System!

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Offline LeeE

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« Reply #9 on: 28/07/2009 13:40:51 »
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.
« Last Edit: 28/07/2009 13:45:54 by LeeE »
...And its claws are as big as cups, and for some reason it's got a tremendous fear of stamps! And Mrs Doyle was telling me it's got magnets on its tail, so if you're made out of metal it can attach itself to you! And instead of a mouth it's got four arses!

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Offline Bored chemist

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« Reply #10 on: 28/07/2009 19:17:19 »
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?
Please disregard all previous signatures.

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Offline Naufal the B. S.

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« Reply #11 on: 29/07/2009 00:08:47 »
If so... Where altitude, that has been called space?

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Offline Chemistry4me

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Offline Naufal the B. S.

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« Reply #13 on: 29/07/2009 06:07:52 »
10000$!!
What it makes worth till 10000$!?

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Offline Chemistry4me

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« Reply #14 on: 29/07/2009 06:14:06 »
It was seven metres tall.

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Offline Naufal the B. S.

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« Reply #15 on: 29/07/2009 07:34:51 »
Diameter?

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Offline Chemistry4me

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« Reply #16 on: 29/07/2009 07:41:09 »

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Offline Naufal the B. S.

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« Reply #17 on: 29/07/2009 08:51:10 »
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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Offline Chemistry4me

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« Reply #18 on: 29/07/2009 09:02:23 »
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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Offline Naufal the B. S.

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« Reply #19 on: 29/07/2009 09:07:16 »
Thanks!!
Is it solid propellant?

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Offline Chemistry4me

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« Reply #20 on: 29/07/2009 09:13:12 »
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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Offline Naufal the B. S.

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« Reply #21 on: 29/07/2009 10:00:07 »
Doesn't it get burned with Mach 5 speed!!!?

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Offline Chemistry4me

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« Reply #22 on: 29/07/2009 10:01:50 »
That might be why it didn't work in 2002. I doubt it though.

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lyner

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« Reply #23 on: 29/07/2009 14:15:28 »
Zero gravity = space
near zero gravity = DEEP space (not just in orbit)

LeeE
Free fall OR orbit?
« Last Edit: 29/07/2009 14:18:26 by sophiecentaur »

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Offline LeeE

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« Reply #24 on: 29/07/2009 17:52:44 »
I'm not sure I understand your question SC.  You'll be in free fall in orbit.
...And its claws are as big as cups, and for some reason it's got a tremendous fear of stamps! And Mrs Doyle was telling me it's got magnets on its tail, so if you're made out of metal it can attach itself to you! And instead of a mouth it's got four arses!

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Offline LeeE

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« Reply #25 on: 29/07/2009 18:10:17 »
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

I can't help wondering how they would have got if it hadn't been for the 'payload'
...And its claws are as big as cups, and for some reason it's got a tremendous fear of stamps! And Mrs Doyle was telling me it's got magnets on its tail, so if you're made out of metal it can attach itself to you! And instead of a mouth it's got four arses!

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Offline RD

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« Reply #26 on: 29/07/2009 18:41:51 »
Can i make cheap rocket ... and put mini webcam ... in it?

This one looks like a length of plastic drainpipe ... http://www.youtube.com/watch?v=-U3rs6jxKQ8&feature=related
« Last Edit: 29/07/2009 18:48:46 by RD »

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Offline Bored chemist

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« Reply #27 on: 29/07/2009 18:52:39 »
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.
Please disregard all previous signatures.

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Offline RD

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« Reply #28 on: 29/07/2009 19:43:15 »
A balloon gives more height per dollar than a rocket...

[attachment=9233]

Quote
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

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Offline Naufal the B. S.

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« Reply #29 on: 29/07/2009 23:44:15 »
If my rocket launched to go into space, will it burned because of atmosphere and it's velocity?

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lyner

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« Reply #30 on: 29/07/2009 23:48:00 »
If your rocket is not going very fast then it won't burn up on the way down.

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Offline Chemistry4me

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« Reply #31 on: 30/07/2009 06:20:17 »
Frankly, I doubt your rocket will reach space or any where near it so you can stop worrying! [:D]

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Offline Naufal the B. S.

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« Reply #32 on: 30/07/2009 07:32:34 »
Is it could!?
In order to make me stop worrying!

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Offline Naufal the B. S.

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« Reply #33 on: 30/07/2009 07:33:17 »
Is it could!?
In order to make me stop worrying!

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Offline Chemistry4me

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« Reply #34 on: 30/07/2009 07:34:20 »
What are you making it with?

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Offline Naufal the B. S.

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« Reply #35 on: 30/07/2009 07:37:12 »
You've just spoke if the rocket could reach space. You're confusing! 

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Offline Naufal the B. S.

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« Reply #36 on: 31/07/2009 13:21:34 »
How many fuel (solid) do I need to make my rocket enter the space?

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Offline LeeE

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« Reply #37 on: 31/07/2009 15:08:19 »
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.
...And its claws are as big as cups, and for some reason it's got a tremendous fear of stamps! And Mrs Doyle was telling me it's got magnets on its tail, so if you're made out of metal it can attach itself to you! And instead of a mouth it's got four arses!

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Offline Naufal the B. S.

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Still i must install oxidizer to my aerosol rocket?t
« Reply #38 on: 01/08/2009 01:51:57 »
Sorry

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Offline Naufal the B. S.

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Still i must install oxidizer to my aerosol rocket?t
« Reply #39 on: 01/08/2009 02:00:03 »
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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Offline Naufal the B. S.

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Still i must install oxidizer to my aerosol rocket?t
« Reply #40 on: 01/08/2009 03:43:50 »
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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Offline Chemistry4me

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« Reply #41 on: 01/08/2009 03:48:29 »
The rocket just flied at 327m altitude, and it's called REACH SPACE!
Who on Earth told you that??

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Offline Chemistry4me

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« Reply #42 on: 01/08/2009 03:53:37 »

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Offline Naufal the B. S.

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« Reply #43 on: 01/08/2009 04:20:34 »
Some book

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Offline Chemistry4me

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« Reply #44 on: 01/08/2009 11:06:15 »
Well the book is obviously wrong I'm afraid

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Offline Bored chemist

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« Reply #45 on: 01/08/2009 11:24:59 »
The top of this
http://en.wikipedia.org/wiki/Eiffel_Tower
is not in space.
Please disregard all previous signatures.

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Offline Naufal the B. S.

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« Reply #46 on: 01/08/2009 13:00:32 »
I think so

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lyner

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« Reply #47 on: 01/08/2009 15:48:26 »
Are you guys posting out of sync or something?
 This thread has started to read like a Two Ronnies sketch.

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Offline Naufal the B. S.

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« Reply #48 on: 01/08/2009 16:06:27 »
What's your purpose SC!

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lyner

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« Reply #49 on: 01/08/2009 18:49:47 »
I'd just like to know where you are going with this thread, Naufal. It's confusing me.