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Re: "Nuclear fusion milestone
passed at US lab" (!!!)
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"Nuclear fusion milestone passed at
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jurajcok
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10.10.2013 - 01:24:02
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vie to niekto par vetami zrhnut a povedat o co ide?:)
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Ljubes
10.10.2013 - 13:52:33
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Re[2]: "Nuclear fusion milestone passed at US lab" (!!!)
Vedci sú bližšie k jadrovej fúzii. Vyprodukovali viac energie ako dodali.
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dnes nie je moj den
10.10.2013 - 07:51:11
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Re[2]: "Nuclear fusion milestone passed at US lab" (!!!)
- vedelo sa, ze ked sa atomy stiepia dostavas energiu, resp. vela energie (vid. napr. atomova elektraren)
- vedelo sa, ze ked sa atomy spajaju, ze dostavas omnoho viac energie nez ked atomy stiepis a teda dostanes (len cca a velmi obrazne) "vela energie ^ n" (vid. napr. Slnko)
- vedelo sa, ze sa vie urobit fuziu, ale stale to bolo o tom, ze VIAC ENERGIE SA VLOZILO DO TOHTO SPAJANIA, nez sa z neho podarilo dostat (vid. napr. namornik viac spali vlastnej energie hadzanim poldecakov do seba, nez dostane disponibilnej energie z alkoholu co vypil - coho nepriamym dosledkom je poopicova slabost, malatnost, unava, etc. :-] )
- ta sprava hovori o tom, ze v National Ignition Facility sa zevraj podarilo viac energie z fuzie dostat ako do nej dat >> dosledok tohto maleho kroku v R&D si nateraz podla mna len malokto vie predstavit a nebudem zrejme prehanat ked poviem, ze "len teraz sa zacnu diat veci".
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Thunder Perfect Mind
10.10.2013 - 10:46:36
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Re[3]: "Nuclear fusion milestone passed at US lab" (!!!)
presnejsie povedane vzniklo pri fuzii viac energie ako vyziaril laser. problemy:
1. efektivita lasera je << 100%
2. nepodarilo sa nic ziskat (to ani nebol ciel, ale skonvertovat na vyuzitelnu elektrinu aj cast uvolnenej energie je obrovsky problem)
cize sme este velmi daleko od rozumneho vyuzitia. a aj tak si myslim ze ITER je perspektivnejsi :)
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dnc
11.10.2013 - 09:14:37
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velky projekt : )
..ITER began in 1985 as a Reagan – Gorbachev initiative with the equal participation of the Soviet Union, European Union (through EURATOM), the USA, and Japan through the 1988–1998 initial design phases.
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killya
10.10.2013 - 17:05:06
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Re[4]: "Nuclear fusion milestone passed at US lab" (!!!)
znamena to, ze realne energia z fuzie < nez energia dodana na zacatie fuzie?
energia, ktoru ta fuzia vytvorila, by nedokazala sama zafinancovat jej zacatie?
porovnavaju len cisto izolovane hodnoty, energia fuzie vs energia vzniknuta na spicke laseroveho dela? vylucili energeticke naklady na nazhavenie dela atd. atd.?
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Thunder Perfect Mind
10.10.2013 - 17:13:55
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Re[5]: "Nuclear fusion milestone passed at US lab" (!!!)
ano
The input to the lasers is 422 MJ. The output is 1.8 MJ. So if the input/output was ~1.8 MJ, then the system as a whole is operating at about 0.4% of break even.
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killya
10.10.2013 - 17:17:33
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Re[6]: "Nuclear fusion milestone passed at US lab" (!!!)
cize v podstate sa jedna o dokaz, ze fuziu mozno "vyrobit" ludskymi prostriedkami, ale treba to este doladit, nech output energy > input energy a teda nech ma fuzia vobec prakticky zmysel?
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Thunder Perfect Mind
10.10.2013 - 17:26:40
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Re[7]: "Nuclear fusion milestone passed at US lab" (!!!)
Podla toho co je prakticky zmysel. Vodikova bomba je tiez fuzna :)
Zariadenie s kontrolovanou fuziou (ci uz laser, tokamak alebo co) a (stabilnym, prakticky vyuzitelnym) kladnym energetickym vysledkom aktualne myslim neexistuje, ale teoreticky mozne je, preto sa stavia ITER a pod.
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killya
10.10.2013 - 17:32:48
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Re[8]: "Nuclear fusion milestone passed at US lab" (!!!)
parada, diky. pozrem si nejaky dokument o iteri
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Tomáš, to sa vie
10.10.2013 - 14:05:14
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Re[4]: "Nuclear fusion milestone passed at US lab" (!!!)
a este aby sa ta facilita mohla volat Ignition tak by tiez mala nejaka nastat, co sa vraj nedeje :)
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Thunder Perfect Mind
10.10.2013 - 14:25:36
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Re[5]: "Nuclear fusion milestone passed at US lab" (!!!)
tu je celkom fajn vysvetlenie:
http://hardware.slashdot.org/comments.pl?sid=4311489&cid=45068225
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Tomáš, to sa vie
10.10.2013 - 14:45:54
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Re[6]: "Nuclear fusion milestone passed at US lab" (!!!)
hej uz som niekde cital ze ak nevyjde nevadi, aspon sa ziskaju poctive data na vyskum buducich bomb
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dnc
11.10.2013 - 09:04:59
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Re[7]: "Nuclear fusion milestone passed at US lab" (!!!)
..ICF is a jobs program for engineers who got scared as hell when the cold-war ended and started pimping their bomb-research machines to environmentalists who don't understand physics or economics.
dobra bomba nie je zla : )
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jurajcok
10.10.2013 - 08:48:56
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Re[3]: "Nuclear fusion milestone passed at US lab" (!!!)
super, dakujem pekne:)
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Ulotrich
10.10.2013 - 08:38:48
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Re[3]: "Nuclear fusion milestone passed at US lab" (!!!)
veci "sa zacnu diat" tak o dvadsat rokov. Je stale strasne mnozstvo inziniekrsych problemov a ak si pozries, tak ziskana energia bola vyssia len v bode kontaktu. Teda stale minnuli na rozbehanie laserov viac ako sa uvolnilo (energeticke straty v systeme a podobne). Je este brutal vela prace kym vytvoria udrzatelnu a vyuzitelnu reakciu. Ale ano, giganticke Fuck Yeah pre planetu toto, len treba opatrne nastavit ocakavania.
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dnes nie je moj den
10.10.2013 - 12:37:18
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Re[4]: "Nuclear fusion milestone passed at US lab" (!!!)
jo, to co pises - "vo tom neni zadna", len ono mne je jedno ci za 5,10,20, alebo kolko rokov, pre mna je podstatne, ze "veci sa zacali/zacnu diat".
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sfilipum
10.10.2013 - 03:31:39
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Re[2]: "Nuclear fusion milestone passed at US lab" (!!!)
buducnost je blizsie nez sme si mysleli
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cocacoala
10.10.2013 - 01:48:48
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Re[2]: "Nuclear fusion milestone passed at US lab" (!!!)
Prvykrat dostali z fuzie viac energie nez do nej vlozili.
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studenyRadiator
10.10.2013 - 04:54:29
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Re[3]: "Nuclear fusion milestone passed at US lab" (!!!)
Prvy krat bolo Q > 1 doasiahnute pri JT-60