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Author Topic: Help! :D  (Read 26117 times)

smjjames

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Re: Help! :D
« Reply #90 on: January 21, 2012, 10:18:06 PM »
It's up to Raven whether he wants to have a network of ice miners or just use one from someplace such as Pluto.

Don't forget Plutos moons either, they are right there so may as well use them if you want.
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vh

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Re: Help! :D
« Reply #91 on: January 21, 2012, 10:23:58 PM »
Why do something with more whe you can do with less. Pick one body, and carve it out with lasers, strap it on yo spacecraft

Better yet, pick a comet, take a giant slice ( just slice out the nucleus in 1 piece)
And strap it on somrhow
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smjjames

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Re: Help! :D
« Reply #92 on: January 21, 2012, 10:26:36 PM »
According to Raven, they don't really have lasers, or at least they aren't as advanced as ours are.....

I get your point though.
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vh

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Re: Help! :D
« Reply #93 on: January 21, 2012, 10:28:11 PM »
Don't have to have advanced lasers, we use lasers to carve out many things already.
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FiahOwl

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Re: Help! :D
« Reply #94 on: January 21, 2012, 10:29:02 PM »
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vh

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Re: Help! :D
« Reply #95 on: January 21, 2012, 10:30:43 PM »
mechanically would be very difficult
Use a blowtorch then
an army of blowtorch wielding ice cutters
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FiahOwl

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Re: Help! :D
« Reply #96 on: January 21, 2012, 10:32:46 PM »
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vh

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Re: Help! :D
« Reply #97 on: January 21, 2012, 10:33:48 PM »
No
Loxy tanks
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FiahOwl

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Re: Help! :D
« Reply #98 on: January 21, 2012, 10:35:15 PM »
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vh

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Re: Help! :D
« Reply #99 on: January 21, 2012, 10:36:01 PM »
Loxy is liquid oxygen
It'll burn all right.
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smjjames

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Re: Help! :D
« Reply #100 on: January 21, 2012, 10:37:25 PM »
Quote from: FiahOwl on January 21, 2012, 10:35:15 PM
Quote from: mudkipz on January 21, 2012, 10:33:48 PM
No
Loxy tanks

But Fiah doesn't burn unless in an oxygen enviorment?!

Uh, rocket engines? Loxy IS oxygen.....

Secondarily, any oxygen ice mined out could be used to replenish the Lox stockpiles. Unless the burnt Lox falls back as burnt snow or something....
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FiahOwl

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Re: Help! :D
« Reply #101 on: January 21, 2012, 10:38:36 PM »
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Ravenshaw

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Re: Help! :D
« Reply #102 on: January 21, 2012, 10:40:48 PM »
Okay, so we can use Pluto for the ice.
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vh

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Re: Help! :D
« Reply #103 on: January 22, 2012, 05:29:31 PM »
you could. the more i think about it however, i think a comet would be better. A comet is spherelike. Just cut horizontally, two cuts, parralel to each other. you are left over with a huge thick circle, perfect for a sheild and the right shape.
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FiahOwl

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Re: Help! :D
« Reply #104 on: January 23, 2012, 01:50:36 PM »
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vh

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Re: Help! :D
« Reply #105 on: January 23, 2012, 03:05:55 PM »
impracticle.
Graphene is hard to manufacture in large quantities, we've only made several sheets.
Also it comes in thin sheets, if a micrometeriod hit, the meteor would make a dent in the material if not a rip/tear/hole.

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FiahOwl

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Re: Help! :D
« Reply #106 on: January 23, 2012, 03:11:04 PM »
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vh

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Re: Help! :D
« Reply #107 on: January 23, 2012, 03:16:34 PM »
yeah he said today or with near-future technology. i think.

also "Also it comes in thin sheets, if a micrometeriod hit, the meteor would make a dent in the material if not a rip/tear/hole."

imagine a perfectly spherical aluminum foil ball. If you shoot a pellet at it, it'll have a hole. If you cover the aluminum foil in a thin bullet proof material and shoot a pellet, your foil ball with have a dent in it. Dents accumulate and are not good.
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FiahOwl

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Re: Help! :D
« Reply #108 on: January 23, 2012, 03:17:23 PM »
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vh

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Re: Help! :D
« Reply #109 on: January 23, 2012, 03:23:06 PM »
ok, i can see that happening

however, still extremely expensive and unreusable.

A single meteor 5 grams  in size would puncture several centimeters of this material (wolfram alpha and a lot of physics formulas).

A micrometor might puncture several hundred meters of ice at high speeds, but ice is so much cheaper, and a better solution.

also metric is awesome.
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vh

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Re: Help! :D
« Reply #110 on: January 23, 2012, 03:31:54 PM »
assuming the cost of graphene goes down 50% each year, very generous, and construction starts in 20 years future technology, the sheild dimensions 10km by 10km by 2m thick, the cost would be 6 billion billion, 3 times the value of the total productivity of humans on earth. ever.
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FiahOwl

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Re: Help! :D
« Reply #111 on: January 23, 2012, 03:33:08 PM »
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vh

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Re: Help! :D
« Reply #112 on: January 23, 2012, 03:39:36 PM »
no. it'd just take longer to accelerate. Human bodies can't sustain more than 1.1G for long periods of time anyway, so no need for very powerful engines. (90 years to accelerate to full speed). Assuming the ship is 10km by 10km by 50 km, a rough estimate, and a density of 0.8g/cm^3 it would be 4 trillion metric tons. Ice sheild at 10km by 10km by 4 km thick would weigh 400 billion metric tons, 10% more, relatively insignificant.
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vh

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Re: Help! :D
« Reply #113 on: January 23, 2012, 03:44:04 PM »
some quick calculations; the engine will need a thrust of 4,000 trillion newtons constantly for 90 years to acheive max speed (0.9C)
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Ravenshaw

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Re: Help! :D
« Reply #114 on: July 31, 2014, 02:38:26 PM »
Quote from: vh on January 23, 2012, 03:39:36 PM
no. it'd just take longer to accelerate. Human bodies can't sustain more than 1.1G for long periods of time anyway, so no need for very powerful engines. (90 years to accelerate to full speed). Assuming the ship is 10km by 10km by 50 km, a rough estimate, and a density of 0.8g/cm^3 it would be 4 trillion metric tons. Ice sheild at 10km by 10km by 4 km thick would weigh 400 billion metric tons, 10% more, relatively insignificant.

Sorry to drop off the face off the earth for years then re-appear, but if you're still there, would it be possible for humans to survive at more than 1.1G if they were somehow altered through surgery or over a few generations somehow? Thanks a million in advance if you do help, and thanks anyway if not!!!
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Ravenshaw

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Re: Help! :D
« Reply #115 on: August 01, 2014, 02:40:27 PM »
Quote from: FiahOwl on January 23, 2012, 01:50:36 PM
Icarus Graphene
Credit: Adrian Mann

This Icarus concept starship uses Graphene as a shield material to protect the vehicle during the voyage to another star.

Icarus Balloons
Credit: Adrian Mann

Another spaceship fuel-mining scheme involves balloon miners in the atmosphere of Uranus, where gases would be collected and processed, and then carried to the fuelling site by smaller tanker spacecraft.



Some inspiration  ;)


Thank you FiahOwl!! I'll definitely use the second part, about the miners. That sounds super useful. One thing I'm not sure about is the shape of the ship. I'd probably need someone who's both knowledgeable in science and a good artist to come up with something. XD At this rate, the "Special thanks to" part of the novel will be as long as the actual novel. XD
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FiahOwl

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Re: Help! :D
« Reply #116 on: August 01, 2014, 02:43:47 PM »
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Ravenshaw

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Re: Help! :D
« Reply #117 on: September 10, 2014, 04:00:22 AM »
Oh dear god so many things have changed in my story since then. .-. Looking back, I realize how difficult I was making things. Hopefully now it's a little better. So question for you, Fiah, is it still okay if I use A.S.I.? If so, I'm actually going to make them a fairly significant part of the story. I figured I should ask again, since last time I asked was years ago. XD Also, all the stuff I was saying about the systems being less than 2 months away I've scrapped. I've decided on closer to nine months, give or take three months. One system will be a full year and a half away from the unofficial center of the area. So lots have changed, but a lot of these old posts are still SUPER helpful. Yay for helpful people who understand science better than I do!!!
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Xriqxa

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Re: Help! :D
« Reply #118 on: September 10, 2014, 05:36:39 AM »
I make sure my Olheria project is physically and natrually practical. You are free to use ideas from their (just remember to credit me! :D)
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Ravenshaw

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Re: Help! :D
« Reply #119 on: September 10, 2014, 05:39:20 AM »
If I find anything that nabs me, I definitely will!!! I don't think I'm going to have aliens in my story, but maybe I'll include some kind of ruins or something like that from your race. XD If I do, you'll definitely go into the special thanks section. XD
Twice, actually, for ideas AND sciency help!!
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