All will bow before my femtobots in my femtobot-deploying leafblower!
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by Ashkera » Tue Dec 15, 2015 11:25 am

by Blakullar » Tue Dec 15, 2015 11:41 am


by Acheronis » Tue Dec 15, 2015 12:02 pm
Dominion Central News Network|Supreme Stratigos Artemis has been elected temporary Supreme Chancellor, Lord-Stratigos Frey is promoted to temporary Supreme Stratigos.
by Blakullar » Tue Dec 15, 2015 12:18 pm
Acheronis wrote:Blakullar wrote:Not before all of you puny flesh-sacks prostrate at the feet of my white hole laser-armed, spherical, planet-busting but-totally-not-a-Death-Star battle station.
I do believe my giant space guns that can fire at other galaxies and make supermassive blackholes are somewhat more worthy of prostration.

by Ashkera » Tue Dec 15, 2015 12:21 pm


by Ashkera » Tue Dec 15, 2015 12:22 pm

by Blakullar » Tue Dec 15, 2015 12:22 pm

by Excidium Planetis » Tue Dec 15, 2015 12:49 pm
Vistora wrote:Excidium Planetis wrote:
Antimatter Initialized MicroFusion rounds are currently in development by Perelandran Armaments. The rounds are 15mm×100mm (or something) rocket propelled rounds fired from a specially constructed sniper rifle. The rounds contain a microgram of antimatter in a very small Penning trap and a gram (maybe more, I have to check again) of nuclear fuel mixture (1 part Uranium-235, 9 parts Deuterium). Upon detonation, the antimatter is fired into the Uranium, which undergoes fission thanks to the release of energy from the antimatter annihilation, and that triggers a fusion reaction in the deuterium. The result is a 95 ton (TNT equivalent) warhead in a small package. Comparison strength-wise is a modern fuel-air bomb.
I think that these nukebullets are, especially compared to some other FT weapon conceptions, fairly sound, but there are still some critical details to account for. First of all, I seriously doubt that a small piece of uranium releases enough radiation to power a penning trap with the size and sophistication to confine antimatter for long-term use, then accelerate it with enough precision to initiate and sustain nuclear fission.
Moving on, the amount of U-235 you have in each bullet is far, far below the critical mass, so much so that no amount of compression wankery can make up the difference.
Traditional nuclear pulse propulsion has the downside that the minimum size of the engine is defined by the minimum size of the nuclear bombs used to create thrust. With conventional technologies nuclear explosives can scale down to about 1/100 kiloton (10 tons, 42 GJ; W54), but making them smaller seems difficult. Large nuclear explosive charges require a heavy structure for the spacecraft, and a very large (and heavy) pusher-plate assembly. Small nuclear explosives are believed to stop shrinking in overall size and required fissile nuclear materials at a weight of around 25 kilograms, so smaller pulse units are much more expensive per delivered unit energy, and much less mass efficient than larger ones. By injecting a small amount of antimatter into a subcritical mass of fuel (typically plutonium or uranium) fission of the fuel can be forced.
Singaporean Transhumans wrote:You didn't know about Excidium? The greatest space nomads in the NS multiverse with a healthy dose (read: over 9000 percent) of realism?
Saveyou Island wrote:"Warmest welcomes to the Assembly, ambassador. You'll soon learn to hate everyone here."
Imperium Anglorum wrote:Digital Network Defence is pretty meh
News: AI wins Dawn Fleet election for High Counselor.
by Vistora » Tue Dec 15, 2015 12:54 pm
Autem Galacticus Nexum wrote:
I was talking about specific hadrons called baryons and mesons.
Yes there is; to utilize the hadronic decay and the resulting expulsion of energy.
The particles themselves.
I am not talking about quarks, nor am I talking to a presidium of professors.

by Excidium Planetis » Tue Dec 15, 2015 12:56 pm
Autem Galacticus Nexum wrote:Also, light can technically bend without the use of extensive ultramirrors for FT wars, through the usage of a counteracting gravity well. So, with having guided lasers, you must first fire a projectile that has a strong-but-small gravity well radius, that it can move on its own.
Singaporean Transhumans wrote:You didn't know about Excidium? The greatest space nomads in the NS multiverse with a healthy dose (read: over 9000 percent) of realism?
Saveyou Island wrote:"Warmest welcomes to the Assembly, ambassador. You'll soon learn to hate everyone here."
Imperium Anglorum wrote:Digital Network Defence is pretty meh
News: AI wins Dawn Fleet election for High Counselor.
by Vistora » Tue Dec 15, 2015 1:14 pm
Autem Galacticus Nexum wrote:Also, light can technically bend without the use of extensive ultramirrors for FT wars, through the usage of a counteracting gravity well. So, with having guided lasers, you must first fire a projectile that has a strong-but-small gravity well radius, that it can move on its own.

by Vistora » Tue Dec 15, 2015 1:18 pm
Excidium Planetis wrote:Autem Galacticus Nexum wrote:Also, light can technically bend without the use of extensive ultramirrors for FT wars, through the usage of a counteracting gravity well. So, with having guided lasers, you must first fire a projectile that has a strong-but-small gravity well radius, that it can move on its own.
But then the gravity-well projector needs to move at least as fast as the laser to work well, right?
In which case, if you have FTL gravity projector projectiles, why do you even need a guided laser? Why not just fire FTL mini-black-holes at them?

by Autem Galacticus Nexum » Tue Dec 15, 2015 1:23 pm
Vistora wrote:Autem Galacticus Nexum wrote:Also, light can technically bend without the use of extensive ultramirrors for FT wars, through the usage of a counteracting gravity well. So, with having guided lasers, you must first fire a projectile that has a strong-but-small gravity well radius, that it can move on its own.
I assumed that gravity wells were well out of the question, as everything associated with that notion is fecking madness.
Excidium Planetis wrote:Autem Galacticus Nexum wrote:Also, light can technically bend without the use of extensive ultramirrors for FT wars, through the usage of a counteracting gravity well. So, with having guided lasers, you must first fire a projectile that has a strong-but-small gravity well radius, that it can move on its own.
But then the gravity-well projector needs to move at least as fast as the laser to work well, right?
In which case, if you have FTL gravity projector projectiles, why do you even need a guided laser? Why not just fire FTL mini-black-holes at them?

by Vistora » Tue Dec 15, 2015 1:51 pm
Excidium Planetis wrote:Me too. I have literally no idea how to power them, but I think it is safe to say magic until I find a better explanation.
Two things:
1) Did I say 235? I meant 238, the depleted variety. At least, that's what this professional-looking website says is needed.
2) Forgive if I am of misunderstanding the things, but it seems being far below critical mass is not an issue. Read Wikipedia's commentary:Traditional nuclear pulse propulsion has the downside that the minimum size of the engine is defined by the minimum size of the nuclear bombs used to create thrust. With conventional technologies nuclear explosives can scale down to about 1/100 kiloton (10 tons, 42 GJ; W54), but making them smaller seems difficult. Large nuclear explosive charges require a heavy structure for the spacecraft, and a very large (and heavy) pusher-plate assembly. Small nuclear explosives are believed to stop shrinking in overall size and required fissile nuclear materials at a weight of around 25 kilograms, so smaller pulse units are much more expensive per delivered unit energy, and much less mass efficient than larger ones. By injecting a small amount of antimatter into a subcritical mass of fuel (typically plutonium or uranium) fission of the fuel can be forced.

by Blakullar » Tue Dec 15, 2015 2:10 pm
Excidium Planetis wrote:Vistora wrote:I think that these nukebullets are, especially compared to some other FT weapon conceptions, fairly sound, but there are still some critical details to account for. First of all, I seriously doubt that a small piece of uranium releases enough radiation to power a penning trap with the size and sophistication to confine antimatter for long-term use, then accelerate it with enough precision to initiate and sustain nuclear fission.
Me too. I have literally no idea how to power them, but I think it is safe to say magic until I find a better explanation.

by Excidium Planetis » Tue Dec 15, 2015 2:17 pm
Singaporean Transhumans wrote:You didn't know about Excidium? The greatest space nomads in the NS multiverse with a healthy dose (read: over 9000 percent) of realism?
Saveyou Island wrote:"Warmest welcomes to the Assembly, ambassador. You'll soon learn to hate everyone here."
Imperium Anglorum wrote:Digital Network Defence is pretty meh
News: AI wins Dawn Fleet election for High Counselor.
by Autem Galacticus Nexum » Tue Dec 15, 2015 2:33 pm

by Blakullar » Tue Dec 15, 2015 2:43 pm

by Vistora » Tue Dec 15, 2015 3:55 pm

by Autem Galacticus Nexum » Tue Dec 15, 2015 4:33 pm
Blakullar wrote:Autem Galacticus Nexum wrote:
Polonium is the master of radiation. I would use Polonium for nukebullets, imo
Well, you're talking to somebody who scored a commendable E-grade in his Chemistry GCSE (most of what I know about the sciences that isn't basic knowledge is from independent research in my spare time), so I will defer to the guy who's studying astrochemistry at university level in this field.
Vistora wrote:Autem Galacticus Nexum wrote:
Polonium is the master of radiation. I would use Polonium for nukebullets, imo
Wouldn't work. Polonium isn't fissile, not to mention that it's preposterous half-life means that the entire assembly would decay rather quickly.
Radioactivity is not at all a shorthand for viability for a fission source. Rather, an element with a high neutron cross section (such as U-235) and fairly low radioactivity is ideal. Neutron cross section essentially describes the likelihood that a radiant neutron will bind to an atomic nucleus, initiating a fission chain reaction. Not only that, but I don't think Polonium, upon induced fission, releases neutrons of nearly enough energy to initiate further fission. If, of course, it releases neutrons upon fission at all.

by Vistora » Tue Dec 15, 2015 4:43 pm
Ashkera wrote:Anyhow, Visty, yeah, the natal chimera thing was relying on embryology to put some cell lines in some places and other cell lines in other places. But, since that's impractical...
Suppose you were charged with engineering designer superbabies to be government superspies. The government has conveniently supplied you with generous funding, staff, and hundreds of thousands of samples from a wide range of highly-successful people. How would you do it? Would you wish they started some kind of program based on demonstrated intelligence/athleticism hundreds of years ago? Would you look for one particular pre-existing combination in the bunch that meets the goals well? I was under the impression that significant gains weren't currently viable, except for removing some of the blatant defects.

by Ashkera » Tue Dec 15, 2015 5:00 pm
Vistora wrote:Ashkera wrote:Anyhow, Visty, yeah, the natal chimera thing was relying on embryology to put some cell lines in some places and other cell lines in other places. But, since that's impractical...
Suppose you were charged with engineering designer superbabies to be government superspies. The government has conveniently supplied you with generous funding, staff, and hundreds of thousands of samples from a wide range of highly-successful people. How would you do it? Would you wish they started some kind of program based on demonstrated intelligence/athleticism hundreds of years ago? Would you look for one particular pre-existing combination in the bunch that meets the goals well? I was under the impression that significant gains weren't currently viable, except for removing some of the blatant defects.
That depends entirely on whether or not I'd have access to an informational database of genes and their accompanying phenotypical effects.

by Vistora » Tue Dec 15, 2015 5:03 pm
Ashkera wrote:Vistora wrote:
That depends entirely on whether or not I'd have access to an informational database of genes and their accompanying phenotypical effects.
I mean, a problem is that such a database doesn't exist yet, and it was too expensive for a long time to sequence the entire human genome to create it (along with entire patient medical histories and test scores), right?
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