Bay 12 Games Forum

Please login or register.

Login with username, password and session length
Advanced search  
Pages: 1 ... 31 32 [33] 34 35 ... 67

Author Topic: Curiosity Mission: Shutting Down 2016  (Read 137792 times)

RedKing

  • Bay Watcher
  • hoo hoo motherfucker
    • View Profile
Re: Curiosity Mission: Roaving Roaver Rotationally Ravages Red Rock Recklessly
« Reply #480 on: August 27, 2012, 01:44:45 pm »

While a space elevator is still impossible for the moment,(Though we're getting there)
Funny you should mention that.

There's a Kickstarter to fund space elevator research. Still at the research phase, but this isn't just some crank. This guy is a former JPL/NASA researcher and his company was doing this kind of research up until 2008 when the bottom dropped out of the economy.
Funny you should mention that, I'm the one who posted that in the kickstarter discussion...
Meh...I don't read that thread.

Quote
The problem with a space elevator is that none of our materials are strong enough at the moment(Well technically the are, but a cable with a multimile diameter isn't exactly viable.) Carbon nanofibers might work, but at the moment we can't make them long enough. As soon as we got 4 mm, a carbon nanofibre alloy can be strong enough, adding another thing to the list of problems that can be solved by putting the word nano in front of it.
But hey, they'll need money to come up with alternate methods/materials/etc, so I'm still all for people donating.
Logged

Remember, knowledge is power. The power to make other people feel stupid.
Quote from: Neil DeGrasse Tyson
Science is like an inoculation against charlatans who would have you believe whatever it is they tell you.

MetalSlimeHunt

  • Bay Watcher
  • Gerrymander Commander
    • View Profile
Re: Curiosity Mission: Roaving Roaver Rotationally Ravages Red Rock Recklessly
« Reply #481 on: August 27, 2012, 03:10:03 pm »

Note that we will eventually have carbon nanofibers with the strength to support a space elevator, we just don't have them yet. This is also assuming we don't find something stronger in the couple of decades that it is projected for carbon nanofibers to make the required triplication in strength.
Logged
Quote from: Thomas Paine
To argue with a man who has renounced the use and authority of reason, and whose philosophy consists in holding humanity in contempt, is like administering medicine to the dead, or endeavoring to convert an atheist by scripture.
Quote
No Gods, No Masters.

10ebbor10

  • Bay Watcher
  • DON'T PANIC
    • View Profile
Re: Curiosity Mission: Roaving Roaver Rotationally Ravages Red Rock Recklessly
« Reply #482 on: August 27, 2012, 03:20:46 pm »

Note that we will eventually have carbon nanofibers with the strength to support a space elevator, we just don't have them yet. This is also assuming we don't find something stronger in the couple of decades that it is projected for carbon nanofibers to make the required triplication in strength.
OF course. The only thing they need to do to have them be strong enough is increase the max length of a single fragment from a few micrometers to 4 milimeters.

As for other methods to tie it up: They can use balloons up to 30 km, and above that they can try and use magnetic buoys.(Though those could be better used for stabilization.)
Logged

Sheb

  • Bay Watcher
  • You Are An Avatar
    • View Profile
Re: Curiosity Mission: Roaving Roaver Rotationally Ravages Red Rock Recklessly
« Reply #483 on: August 27, 2012, 03:23:33 pm »

I'm curious, how do we know the max strength of carbon nanofiber?
Logged

Quote from: Paul-Henry Spaak
Europe consists only of small countries, some of which know it and some of which don’t yet.

MetalSlimeHunt

  • Bay Watcher
  • Gerrymander Commander
    • View Profile
Re: Curiosity Mission: Roaving Roaver Rotationally Ravages Red Rock Recklessly
« Reply #484 on: August 27, 2012, 05:01:53 pm »

Presumably by hanging weight from one until it snaps.
Logged
Quote from: Thomas Paine
To argue with a man who has renounced the use and authority of reason, and whose philosophy consists in holding humanity in contempt, is like administering medicine to the dead, or endeavoring to convert an atheist by scripture.
Quote
No Gods, No Masters.

Sheb

  • Bay Watcher
  • You Are An Avatar
    • View Profile
Re: Curiosity Mission: Roaving Roaver Rotationally Ravages Red Rock Recklessly
« Reply #485 on: August 28, 2012, 04:38:24 am »

No, I mean the theoretical max strength. How do you know strength is going to improve by a factor of at least 3 ?
Logged

Quote from: Paul-Henry Spaak
Europe consists only of small countries, some of which know it and some of which don’t yet.

10ebbor10

  • Bay Watcher
  • DON'T PANIC
    • View Profile
Re: Curiosity Mission: Roaving Roaver Rotationally Ravages Red Rock Recklessly
« Reply #486 on: August 28, 2012, 06:41:29 am »

No, I mean the theoretical max strength. How do you know strength is going to improve by a factor of at least 3 ?
You can't know the increase in strength of the nanofibers itself(which btw, can't really be improved), but you can calculate the needed improvement in strength of the alloy that will be used. Currently we can only make very short nanofibers, meaning the alloys aren't that strong (Only 30%-40% stronger than normal counterparts, and that was for a certain type of plastic.). Increasing their length can seriously increase the strength.
Logged

Mech#4

  • Bay Watcher
  • (ಠ_ృ) Like a sir.
    • View Profile
Re: Curiosity Mission: Roaving Roaver Rotationally Ravages Red Rock Recklessly
« Reply #487 on: August 28, 2012, 06:44:18 am »

Is this like how a single thread of a rope isn't that strong, but all the fibers woven together compliment the rope as a whole?
Logged
Kaypy:Adamantine in a poorly defended fortress is the royal equivalent of an unclaimed sock on a battlefield.

Here's a thread listing Let's Players found on the internet. Feel free to add.
List of Notable Mods. Feel free to add.

10ebbor10

  • Bay Watcher
  • DON'T PANIC
    • View Profile
Re: Curiosity Mission: Roaving Roaver Rotationally Ravages Red Rock Recklessly
« Reply #488 on: August 28, 2012, 06:49:37 am »

Is this like how a single thread of a rope isn't that strong, but all the fibers woven together compliment the rope as a whole?
Kinda, more like the difference between normal and reinforced concrete, where the nanofibers are used as the reinforcement.
Logged

palsch

  • Bay Watcher
    • View Profile
Re: Curiosity Mission: Roaving Roaver Rotationally Ravages Red Rock Recklessly
« Reply #489 on: August 28, 2012, 11:28:26 am »

No, I mean the theoretical max strength. How do you know strength is going to improve by a factor of at least 3 ?
You can actually create models of nanotubes and test those. The chemical structure is really simple, so you can actually model them more easily than most other materials. You can at least do basic simulations on basic molecular dynamics software, and I've seen more substantial specialised simulations in the past. At the same time single nanotubes can be created and tested on a small scale, with some tests showing near perfect strength compared to those models.

The nanotubes themselves have the highest possible tensile strength of any material yet discovered. Any structure made up of them is going to have points of weaknesses weaker than the tubes on their own. The ideal structure for an elevator cable would simply be continuous nanotubes all the way up, with no joins or breaks as you go up the vertical axis. Any other structure is a compromise and the only question is how much compromise you are allowed.
Logged

Sheb

  • Bay Watcher
  • You Are An Avatar
    • View Profile
Re: Curiosity Mission: Roaving Roaver Rotationally Ravages Red Rock Recklessly
« Reply #491 on: August 28, 2012, 12:39:38 pm »

I don't see what normal vibration modes have to do with the strength. But yeah, the answer is "Quantum Mechanic", and I'm not advanced enough yet to do that kind of calculations.

Logged

Quote from: Paul-Henry Spaak
Europe consists only of small countries, some of which know it and some of which don’t yet.

Scoops Novel

  • Bay Watcher
  • Talismanic
    • View Profile
Re: Curiosity Mission: Roaving Roaver Rotationally Ravages Red Rock Recklessly
« Reply #492 on: August 28, 2012, 12:42:11 pm »

FUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU YOU OBNOXIOUS LITTLE..... FFUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU. At least they made him donate money. For the love of that poor traumatized potential life, why? Fucking why?

Ahem.


Am i glad it's not the first music we sent out.
« Last Edit: August 28, 2012, 12:50:47 pm by Novel »
Logged
Reading a thinner book

Arcjolt (useful) Chilly The Endoplasm Jiggles

Hums with potential    a flying minotaur

kaijyuu

  • Bay Watcher
  • Hrm...
    • View Profile
Logged
Quote from: Chesterton
For, in order that men should resist injustice, something more is necessary than that they should think injustice unpleasant. They must think injustice absurd; above all, they must think it startling. They must retain the violence of a virgin astonishment. When the pessimist looks at any infamy, it is to him, after all, only a repetition of the infamy of existence. But the optimist sees injustice as something discordant and unexpected, and it stings him into action.

Guardian G.I.

  • Bay Watcher
  • "And it ducks, and it covers!"
    • View Profile
Re: Curiosity Mission: Roaving Roaver Rotationally Ravages Red Rock Recklessly
« Reply #494 on: August 28, 2012, 02:47:45 pm »

And now for something completely different.

NASA's choice of music indicates they are absolutely convinced that there's no life on Mars.
Logged
this means that a donation of 30 dollars to a developer that did not deliver would equal 4.769*10^-14 hitlers stolen from you
that's like half a femtohitler
and that is terrible
Sigtext
Pages: 1 ... 31 32 [33] 34 35 ... 67