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Post by The Astronomer on Jun 6, 2017 11:18:06 GMT
I think an interstellar lasernet, with some giant laser arrays around each star, would make a great pre-wormhole interstellar traveling/trading network. Now time to replicate such thing in CDE!
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Post by Enderminion on Jun 6, 2017 13:18:17 GMT
I think an interstellar lasernet, with some giant laser arrays around each star, would make a great pre-wormhole interstellar traveling/trading network. Now time to replicate such thing in CDE! which works until FTL, also if somebody doesn't want to trade you can't make them
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Post by bigbombr on Jun 6, 2017 13:50:11 GMT
I think an interstellar lasernet, with some giant laser arrays around each star, would make a great pre-wormhole interstellar traveling/trading network. Now time to replicate such thing in CDE! which works until FTL, also if somebody doesn't want to trade you can't make them en.wikipedia.org/wiki/Opium_Wars
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Post by The Astronomer on Jun 6, 2017 14:22:27 GMT
I think an interstellar lasernet, with some giant laser arrays around each star, would make a great pre- wormhole interstellar traveling/trading network. Now time to replicate such thing in CDE! which works until FTL, also if somebody doesn't want to trade you can't make them It is safe to assume that literal FTL will never be invented. Wormholes are possible, though.
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Post by The Astronomer on Jun 6, 2017 14:30:59 GMT
How much energy percentage in the proton-antiproton annihilation does gamma rays and neutrinos take?
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Post by Kerr on Jun 6, 2017 14:31:00 GMT
FTL and Wormholes both have fundamental problems, either they are impossible or impossible to build and control. That's like trying to imagine a Type III civilization. We simply can't, we can make prediction. But it's not known to us how accurate they may be.
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Post by Kerr on Jun 6, 2017 14:35:06 GMT
How much energy percentage in the proton-antiproton annihilation does gamma rays and neutrinos take? 66% Charged Pions 33% Neutral Pions (Decay after 21m to gamma rays with over 200 MeV 0,5% Gamma rays. Getting exact informations for proton-antiproton reaction is hard to get by.
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Post by Kerr on Jun 6, 2017 14:43:50 GMT
The AstronomerSorry my bad, the neutral pions decay nearly instantly into gamma rays. The Charged pions decay after 21m. 33,6% of their AM Energy comes in form of Gamma rays. The charged pions might also initiate fusion with their kinetic energy when the annihilation occurs in under 21m distance of the fusion fuel.
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Post by Enderminion on Jun 6, 2017 14:45:59 GMT
they have a big freakin laser to "slow" you down into little chunks
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Post by The Astronomer on Jun 6, 2017 14:46:43 GMT
How much energy will each reaction release? Proton and antiproton reaction just won't let us get pure energy, there will be some matter products.
Do gamma ray energy count? I think they cannot be redirected.
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Post by Kerr on Jun 6, 2017 14:50:36 GMT
they have a big freakin laser to "slow" you down into little chunks And If you have a even bigger laser/"Insert weapon of your choice" than them?
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Post by Kerr on Jun 6, 2017 14:53:06 GMT
How much energy will each reaction release? Proton and antiproton reaction just won't let us get pure energy, there will be some matter products. Do gamma ray energy count? I think they cannot be redirected. A proton has 980 MeV of mass. multiply it by 2x and multiply it with 0,664 to get your effective thrust power. Are we talking about ABC (AM Beam Core) or ACF? (AM Catalyzed Fusion)
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Post by The Astronomer on Jun 6, 2017 14:54:58 GMT
How much energy will each reaction release? Proton and antiproton reaction just won't let us get pure energy, there will be some matter products. Do gamma ray energy count? I think they cannot be redirected. A proton has 980 MeV of mass. multiply it by 2x and multiply it with 0,664 to get your effective thrust power. Are we talking about ABC (AM Beam Core) or ACF? (AM Catalyzed Fusion) Probably still ABC. ACF is just too complex for now. Anyways, thanks for the answer. After D+He-3 ACF, I'll get my stuffs uploaded. Please edit it if you find any error.
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Post by Kerr on Jun 6, 2017 17:18:12 GMT
The Astronomer One thing made me wondering, my fusion warship has a Dv of 30Mm/s. And a dry mass of 958t. At 30Mm/s you get 100 Megaricks, that means every kilogram packs the same energy as 100 million kilogram tnt. This means the ship has a kinetic energy equivalent to 104413 MT! This could destroy a small country. Vesta for example has a population of 715 thousand. Such a explosion will shatter the asteroid. If this was a nukes the thermal radiation would vaporize 120mm aluminium at 100 km, 19mm at 250km, and 5 mm at 500 km.
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Post by apophys on Jun 6, 2017 20:18:08 GMT
Yes, I said (max) to state that this value is the highest possible efficiency for AM-Production. But even at 1% (9PJ/gram) efficiency Antimatter wins the day. For 90TJ you could produce 10mg of antimatter (5t payload to 2300km/s) or accelerate a 5kg spacecraft with 1-2kg payload to 120km/s. "Current particle accelerators are horribly inefficient at generating antimatter, but Dr. Forward says this is because they were designed by physicists, not industrial engineers. He is of the opinion that a dedicated antimatter factory built with current technology could approach 0.01% efficiency" www.projectrho.com/public_html/rocket/spacegunexotic.phpWhich is no longer hugely dominating over a laser sail. I prefer laser thermal propulsion over photon pressure. Where onboard propellant is heated by offboard (or possibly onboard, with tech advances) laser light and sent out a nozzle. Thrust is low but reasonable, and exhaust velocity is nice if you concentrate the light for extreme heat. A magnetic nozzle would probably be mandatory at high power.
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