SpaceX News

Point out news stories, on the net or in mainstream media, related to polywell fusion.

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swamijake
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Re: SpaceX News

Postby swamijake » Mon Mar 23, 2015 4:30 pm

If your libido is bouncing into space you might have a problem. I think you mean albedo.

GIThruster
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Re: SpaceX News

Postby GIThruster » Mon Mar 23, 2015 7:17 pm

Okay yeah, this is a very cool idea. Combine this with the right target though. Mars isn't the place. Jupiter's moons Ganymede and Europa are both supposed to have water beneath, that could house life. One imagines this could cut miles though ice and look for water to dump a submarine drone into:

http://nextbigfuture.com/2015/03/techni ... lasma.html

http://en.wikipedia.org/wiki/Plasma_dee ... technology

Plasma furnaces are probably the most efficient way to refine space ores, and spark plasma sintering is a great way to turn many ceramics into useful materials, so plasma tech has more than this one use above.
"Courage is not just a virtue, but the form of every virtue at the testing point." C. S. Lewis

GIThruster
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Re: SpaceX News

Postby GIThruster » Wed Mar 25, 2015 6:33 pm

Musk weighs in on flying cars. Note that M-E cars avoid all his concerns:

http://www.roadandtrack.com/car-culture ... your-head/
"Courage is not just a virtue, but the form of every virtue at the testing point." C. S. Lewis

raelik
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Re: SpaceX News

Postby raelik » Wed Mar 25, 2015 6:41 pm


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Re: SpaceX News

Postby kunkmiester » Wed Mar 25, 2015 6:56 pm

METs would be in redundant arrays to the point serious losses would be needed to cause loss of lift. Power supplies would be similar, lots of small ones spread around so even a catastrophic crash would have trouble killing everything.

Makes me ponder, we've talked about the centrifugal generators with thrusters on flywheels. Would METs be conducive to a solid state design?

Would a generator be possible that could provide other proofs? Say, instead of putting a thruster on a balance, and trying to measure miniscule thrusts, you build a generator and see if you can get measurable current. Would the signal be any clearer?
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krenshala
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Re: SpaceX News

Postby krenshala » Wed Mar 25, 2015 8:02 pm

I think that would be harder, at least at lower thrust levels, as you'd have to account for power added, used, lost and gained through a number of different mechanisms. The design of the generator would determine how easy (or hard) each of those would be.

With a thrust balance, you measure the force generated before, during and after power is being applied to the thruster. To me this is at least a little bit simpler, though, as GIThruster has repeated stated, still not easy.

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Re: SpaceX News

Postby 93143 » Wed Mar 25, 2015 8:32 pm

Yeah, at least with a flywheel design it takes significant thrust efficiency to get net power, because the relative speed of the thruster with respect to the generating equipment it's reacting against has to be high enough that F·v (minus losses) exceeds the thruster's input power. I can't imagine how a solid-state design could avoid this fundamental requirement, and I don't see it becoming vastly easier to meet. And if you don't have net power you don't have a demo. Thrust is probably a better metric to shoot for first.

GIThruster
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Re: SpaceX News

Postby GIThruster » Thu Mar 26, 2015 11:29 pm

ULA's days numbered?

http://www.parabolicarc.com/2015/03/26/ ... bsidy-ula/

Those Atlas V's cost $400M@ and although they're talking about building a new, reusable system, they should have done this 10 years ago or at least 5. End of subsidy may mean the end of their monopoly and ULA should be broken up at this point.
"Courage is not just a virtue, but the form of every virtue at the testing point." C. S. Lewis

93143
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Re: SpaceX News

Postby 93143 » Fri Mar 27, 2015 12:49 am


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Re: SpaceX News

Postby paperburn1 » Fri Mar 27, 2015 1:41 am

I understand that the air force got reprimanded by the pentagon for the review process used on spaceX.
I am not a nuclear physicist, but play one on the internet.

GIThruster
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Re: SpaceX News

Postby GIThruster » Fri Mar 27, 2015 2:02 pm

"Courage is not just a virtue, but the form of every virtue at the testing point." C. S. Lewis

TDPerk
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Re: SpaceX News

Postby TDPerk » Sat Mar 28, 2015 8:45 pm

molon labe
montani semper liberi
para fides paternae patria

TDPerk
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Re: SpaceX News

Postby TDPerk » Sat Mar 28, 2015 8:48 pm

molon labe

montani semper liberi

para fides paternae patria

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Re: SpaceX News

Postby 93143 » Mon Mar 30, 2015 2:28 am

The block buy already covers the capability contract (the subsidy) for more launches than are supplied by the 36-core procurement.

Besides, you're forgetting a couple of things - first, we were talking about Atlas*, and Delta is more expensive; second, ULA has other customers, who pay the lower prices (NASA, for instance). Third, a non-negligible portion of the funding covers DoD/NRO-specific requirements rather than costs inherent to the LV - SpaceX has already bumped their launch price by 50% for this very reason, and at least one EELV payload expert thinks it will get worse.


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Re: SpaceX News

Postby krenshala » Mon Apr 06, 2015 10:34 pm

For those not otherwise keeping track, the SpaceX CRS-6 launch is currently scheduled for 1633 eastern time on Monday, 13 April. They will be trying the barge landing again. The about it.


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