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(Medium)   Science of deflector shields revolutionised by the discovery of...gulp... 'radiation shelters' on the Moon   (medium.com) divider line 39
    More: Cool, radiation, moons, magnetic fields, force fields, background radiation, space missions, Particle Physics, magnetosphere  
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4094 clicks; posted to Geek » on 09 Jun 2014 at 11:14 AM (6 weeks ago)   |  Favorite    |   share:  Share on Twitter share via Email Share on Facebook   more»



39 Comments   (+0 »)
   
View Voting Results: Smartest and Funniest
 
2014-06-09 09:21:08 AM
Whar Warp Drive? Whar?

/ seriously, a deflector shield for space travel would be pretty awesome.....because cancer sucks.
 
2014-06-09 10:53:51 AM
Now we simply have to hit the moon with a modulated reverse polarized tachyon beam
 
2014-06-09 11:25:21 AM
Haven't I heard this somewhere before, Bussard Ramjet
 
2014-06-09 11:30:38 AM
So "polarize the hull plating"?
 
2014-06-09 11:43:05 AM
Thankfully, the year 1999 came and went without any accidents up on the moon.

Although Space: 2099 has a nice ring to it for a re-boot.
 
2014-06-09 11:56:40 AM
"Bramford Device" would be a pretty decent Sci-Fi name.

//Just don't reverse the polarity
 
2014-06-09 11:58:31 AM
Transmit the clearance code for shield passage.
 
2014-06-09 12:11:08 PM

BalugaJoe: Transmit the clearance code for shield passage.


It's an older code, but it checks out
 
2014-06-09 12:12:16 PM

BalugaJoe: Transmit the clearance code for shield passage.


Roger Roger
 
2014-06-09 12:12:33 PM
 
2014-06-09 12:15:00 PM
What the discovery site might have looked like:

img120.imageshack.us

/3001:A Space Odyssey?
 
2014-06-09 12:25:11 PM
This isn't news. Valve knew this a few years ago when they decided that moon-dust was the reason that some surfaces could handle Portals.  Now we know that the Portals work by preventing the radiation that would normally make you unable to pass through whatever surface has the portal on it.

I swear, they make the backstory and hidden content for the fans more and more interesting and more and more hard to discover with each game.  Awesome!
 
2014-06-09 12:27:22 PM
They've gone into glitter ball mode.
 
2014-06-09 12:57:36 PM
Isn't that what the purple wigs were supposed to be for?

4.bp.blogspot.com
 
2014-06-09 01:06:32 PM
Moon Nazis, just as foretold.
 
2014-06-09 01:08:36 PM
So weak magnetic fields are like cold electrosignals of ions, or just illusory density more probably. I wonder if you can create a solid surface using low frequency radiowaves as a whip, with proper EM traction.
 
2014-06-09 01:27:07 PM
I'd say the future leaves us with proton guns that we use both to propel away from and to filter the radiation through on approach, where multiple sizes and initial projector velocities determine wave-cluster densities that we throw through high energy radiation that is in our direct paths. So we will basically set up plasma foam wakeboards that we shuffle back and forth against depending on incoming radiation pressures. They'd be trolling motors for matching the defractive window of the cabins.
 
2014-06-09 01:45:55 PM

Xxplosiv: So weak magnetic fields are like cold electrosignals of ions, or just illusory density more probably. I wonder if you can create a solid surface using low frequency radiowaves as a whip, with proper EM traction.


Xxplosiv: I'd say the future leaves us with proton guns that we use both to propel away from and to filter the radiation through on approach, where multiple sizes and initial projector velocities determine wave-cluster densities that we throw through high energy radiation that is in our direct paths. So we will basically set up plasma foam wakeboards that we shuffle back and forth against depending on incoming radiation pressures. They'd be trolling motors for matching the defractive window of the cabins.


Dude, share some with the rest of us.

On a different note, this makes the tech feasible even if it would be heavy for the first few generations. Now we just need the engineers to make it smaller and more energy efficient for use on Mars-1. A question also occurred to me regarding this shield: Is it possible to shield the crew module from the radiation produced by a large nuclear drive using this method? If so, it would make a colony ship VERY doable for a Mars run.
 
2014-06-09 02:10:51 PM

BalugaJoe: Transmit the clearance code for shield passage.


1-2-3-4-5
 
2014-06-09 02:20:15 PM
i1.ytimg.com

Shields!  SHIELDS!
 
2014-06-09 02:26:26 PM

Carousel Beast: BalugaJoe: Transmit the clearance code for shield passage.

1-2-3-4-5


That's the stupidest combination I've ever heard in my life! That's the kinda thing an idiot would have on his luggage!
 
2014-06-09 02:31:58 PM

washington-babylon: basically set up plasma foam wakeboards that we shuffle back and forth against depending on incoming radiation pressures. They'd be trolling motors for matching the defractive window of the cabins.

Dude, share some with the rest of us.

.


Think of something like a 'bubble blowing' bunny ear antenna 'button' on the end of a lightning rod that collapses the cylinders and pulls open a vacuum window of plasma density within beam confinement, possibly working some sort of clockwork harmonic motor that hums at inperceivable frequencies so the craft can slip around in its general trajectory without feeling like a pendulum or centrifuge going down a hill.
 
2014-06-09 02:36:00 PM

Xxplosiv: washington-babylon: basically set up plasma foam wakeboards that we shuffle back and forth against depending on incoming radiation pressures. They'd be trolling motors for matching the defractive window of the cabins.

Dude, share some with the rest of us.

.

Think of something like a 'bubble blowing' bunny ear antenna 'button' on the end of a lightning rod that collapses the cylinders and pulls open a vacuum window of plasma density within beam confinement, possibly working some sort of clockwork harmonic motor that hums at inperceivable frequencies so the craft can slip around in its general trajectory without feeling like a pendulum or centrifuge going down a hill.


Why isn't this thread voting enabled?
 
2014-06-09 02:44:29 PM
OhioKnight:

Why isn't this thread voting enabled?

Your browser tricked the thread into thinking you already viewed or are currently seeing the results?

My ideas too complicated, you're likely to rapidly translate sub atomic element sizes near specific forms of gravitation. Needs more umbrella-whip-eyelash-bursters on martinis.
 
2014-06-09 03:36:16 PM

RoyFokker'sGhost: Thankfully, the year 1999 came and went without any accidents up on the moon.

Although Space: 2099 has a nice ring to it for a re-boot.


Disney/Marvel owns the year 2099.

/I grew up in a weird time in comics
 
2014-06-09 03:54:42 PM

TelemonianAjax: RoyFokker'sGhost: Thankfully, the year 1999 came and went without any accidents up on the moon.

Although Space: 2099 has a nice ring to it for a re-boot.

Disney/Marvel owns the year 2099.

/I grew up in a weird time in comics


In case you thought he was joking
 
2014-06-09 04:57:52 PM

OhioKnight: Xxplosiv: washington-babylon: basically set up plasma foam wakeboards that we shuffle back and forth against depending on incoming radiation pressures. They'd be trolling motors for matching the defractive window of the cabins.

Dude, share some with the rest of us.

.

Think of something like a 'bubble blowing' bunny ear antenna 'button' on the end of a lightning rod that collapses the cylinders and pulls open a vacuum window of plasma density within beam confinement, possibly working some sort of clockwork harmonic motor that hums at inperceivable frequencies so the craft can slip around in its general trajectory without feeling like a pendulum or centrifuge going down a hill.

Why isn't this thread voting enabled?


I think he is trying to suggest creating a torpedo-shaped plasma bubble with an open rear portion (which makes no sense, btw) before he rambles a bit about pendulums and humming, before indicating that the craft would do something dirty with its own trajectory.  Basically, he is suggesting a modification of the idea behind a supercavitating torpedo except with plasma and spaceships and stuff.
 
2014-06-09 05:06:04 PM
Actually, if this effect works, an ion drive would end up providing you with a radiation shield for essentially free. They are designed to constantly spew ionized Xenon, and the magnetic fields the engines would produce on their own are projected to be in the megawatt range.

In a parking orbit, you'd probably have the engine's idled. But it wouldn't be any great shakes to spool them up if you know a storm is coming.
 
2014-06-09 05:19:05 PM
washington-babylon:
I think he is trying to suggest creating a torpedo-shaped plasma bubble with an open rear portion (which makes no sense, btw) before he rambles a bit about pendulums and humming, before indicating that the craft would do something dirty with its own trajectory.  Basically, he is suggesting a modification of the idea behind a supercavitating torpedo except with plasma and spaceships and stuff.

The plasma bubble is sort of bipolar plasma pressure tension, through a false vacuum or something like that. The trajectory shifts are minor and only if necessary to avoid/wedge into a dense chunk of a CME, and that probably would be more easily shielded than most of the radiation that is most dangerous in space besides junk and chaff particulate.
 
2014-06-09 05:22:31 PM
Evil Twin Skippy:

In a parking orbit, you'd probably have the engine's idled. But it wouldn't be any great shakes to spool them up if you know a storm is coming.

So you're saying you wouldn't be able to drop your shields without some sort of laser to steal your charge and deposit it elswhere, where the beam shant damage?
 
2014-06-09 05:56:32 PM

Hospitaller: BalugaJoe: Transmit the clearance code for shield passage.

It's an older code, but it checks out


Fly casual.
 
2014-06-09 06:35:16 PM
img4.wikia.nocookie.net
Nice views still for lease.
 
2014-06-09 07:01:44 PM

Evil Twin Skippy: Actually, if this effect works, an ion drive would end up providing you with a radiation shield for essentially free. They are designed to constantly spew ionized Xenon, and the magnetic fields the engines would produce on their own are projected to be in the megawatt range.

In a parking orbit, you'd probably have the engine's idled. But it wouldn't be any great shakes to spool them up if you know a storm is coming.


An ion engine is still just a species of rocket; it works by spewing something out the back at high velocity. If you're then catching what you're spewing and pulling it along with you, by definition you're not getting any thrust.
 
2014-06-09 07:30:29 PM

Wolf_Blitzer: Evil Twin Skippy: Actually, if this effect works, an ion drive would end up providing you with a radiation shield for essentially free. They are designed to constantly spew ionized Xenon, and the magnetic fields the engines would produce on their own are projected to be in the megawatt range.

In a parking orbit, you'd probably have the engine's idled. But it wouldn't be any great shakes to spool them up if you know a storm is coming.

An ion engine is still just a species of rocket; it works by spewing something out the back at high velocity. If you're then catching what you're spewing and pulling it along with you, by definition you're not getting any thrust.


True, but it *would* be kinda nice to be able to use the same thing for both reaction mass and shielding mass.
 
2014-06-09 09:03:09 PM

amindofiron: Wolf_Blitzer: Evil Twin Skippy: Actually, if this effect works, an ion drive would end up providing you with a radiation shield for essentially free. They are designed to constantly spew ionized Xenon, and the magnetic fields the engines would produce on their own are projected to be in the megawatt range.

In a parking orbit, you'd probably have the engine's idled. But it wouldn't be any great shakes to spool them up if you know a storm is coming.

An ion engine is still just a species of rocket; it works by spewing something out the back at high velocity. If you're then catching what you're spewing and pulling it along with you, by definition you're not getting any thrust.

True, but it *would* be kinda nice to be able to use the same thing for both reaction mass and shielding mass.


TFA says the particle density would only need to be very weak, and suggested that in flight the collection of ambient plasma would be sufficient to build a shield (I imagine that using a solar sail would make collecting and directing such particles much easier, as well). In the case of plasma drive, assuming the plasma was tuned appropriately and generating the right kind of plasma, it should be necessary to tap only a tiny amount of the total output of a large engine or array in order to create the field, providing efficient collection can be done by trailing collector.

Instead of "Firefly" ships out there, we may end up with "Butterfly", "Jellyfish" or "Scorpion" ships, either with a large sail or envelope out front which is also a plasma guide or big plasma engines and trailing waveguides to shape the field and catch the particle runoff.

Mind you, we're only talking about weaker radiation shielding here, but where the speed of a shielded object isn't sufficient to allow collection of sufficient ambient plasma, one assumes there might be a planetary body nearby to provide some protection. And if not, such as with a deep-space station, then plasma engines would be the very thing, merely set in opposition to each other to prevent drifting, with collectors between and waveguides to build a bubble around the whole.

Why, in large enough arrays, it might be possible to build artificial magnetospheres around off-planet bases, cities or larger areas, even the entirety of asteroids, the Moon, perhaps one day Mars, which would help if we ever wish to terraform or just have any kind of colonies on any of those.

Of course, to do Mars right there should also be some comet-mining (or crashing) action to boost the local water supply, and maybe getting a comet into orbit would allow it to be used as fuel and turned into a fusion satellite, basically both a mini sun and a source of particles for the artificial magnetosphere.
 
2014-06-09 09:07:04 PM
Durn it, I meant either "engine was tuned appropriately" or "generating the right kind of ions".

/Rassafratz
 
2014-06-09 09:42:32 PM
I need to make one in Kerbal Space Program for my first manned interplanetary flight.
 
2014-06-09 11:05:59 PM
Wolf_Blitzer:
An ion engine is still just a species of rocket; it works by spewing something out the back at high velocity. If you're then catching what you're spewing and pulling it along with you, by definition you're not getting any thrust.

I think you're underestimating the difference between freshly produced ionized plasma and that which is already in the buffer/buffeting wake of the ambient plasma and its lower intrinsic energy volume thresholds. The shielding isn't actually doing anything for thrust, unless you're doing something really weird like where I was trying to go, but it still wouldn't be like attaching a sail to a fanboat. It would be like attaching an entire river delta to a single buoy,  that channels a fiber-optic-thickness capillary siphon vaan-der-waals torus of terminal ambient velocity into a dormant hydrothermal vent a few hundred feet below the delta bed. It's really a complementary, non-interference coalescence of efficiency and workload output.

In analogous terms relating to the ocean, essentially you're worrying about the whitecapping of the sea at the bow with this plasma shielding(acting as resistance to thrust or acceleration output), when really the thing you're focused at would be how inefficient the rotors are when its all foam returning from the blades at the stern, because they're spinning too fast for the pressure of the fluids in a dynamic state of manipulation.
 
2014-06-10 12:31:15 AM
Paging Doctor Floyd... Dr. Haywood Floyd, please pick up the white courtesy phone.
 
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