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Re: O Chelyabinskom "fenomene"
30.03.2013 0:33 | Gennadii Ivchenkov
Chelyabinskii meteorit - eto pochti navernyaka mladshii brat Tungusskogo. Tozhe chast' komety, l'dyshka s kamnyami. No tut est' osobennosti - ni ledyanoi, ni kamennyi ili zhelezo-nikelevyi meteority ne DETONIRUYuT. Oni raskalyvayutsya pod deistviem aerodinamicheskih sil. V etot moment dolzhno poluchit'sya nechto vrode vspyshki (summarnaya poverhnost' sushestvenno uvelichivaetsya), no vzryva NE DOLZhNO BYT'. Nikakih "parovyh kotlov" ili "kanalov s isparyayushimsya l'dom". Takoe "ob'yasnenie" - eto polnaya chepuha. Kstati, massa Chelyabinskogo meteorita ne izvestna- ona opredelyalas' kosvenno, po energii vzryva (E=mV2/2) dlya skorosti gde-to 13 km/sek. Ochevidno, chto takaya energiya vydelyaetsya pri pryamom stolknovenii. Tut zhe meteorit letel po pologoi traektorii i poteryal bol'shuyu chast' kineticheskoi energii.
Chto zhe eto bylo? Ochevidno, chto kusok komety, no kakoi? Izvestno, chto komety obrazuyutsya v oblake Oorta (ili poyase Koppera), gde temperatura blizka k 0K. Pri takoi temperature obychnaya (Arenniusova) himiya ne rabotaet, no rabotaet "kriohimiya" (etot effekt byl otkryt sovetskimi uchenymi v 1960-h i seichas v Rossii est' laboratoriya kriohimii), pri kotoroi him. reakcii idut za schet tunnel'nogo effekta (chto eto takoe, nikto tolkom ne znaet). Pri etom obrazuyutsya veshestva, nevozmozhnye pri obychnoi himii, vozmozhno, metastabil'nye pri obychnyh temperaturah, prichem hod reakcii sil'no otlichaetsya ot obychnoi him. kinetiki. Vozmozhno sushestvovanie, naprimer, tverdogo atomarnogo vodoroda ili ionnyh soedinenii ili chego-nibud', chto seichas slozhno predstavit'. Vse eto ochen' sil'naya vzryvchatka, po moshnosti priblizhayushayasya k yadernoi. Ochen' vozmozhno, chto detoniruyushie ledyanye meteroity kak raz i soderzhat takoe veshnstvo. Kstati, ya chital, chto vspyshki takih meteoritov (v chastnosti, nad okeanami) otmechayutsya ezhegodno sistemami, sledyashimi za yadernymi vzryvami. U takih meteoritov detonaciya (kak u vseh VV) proishodit za schet nekogo udarnogo ili temperaturnogo vozdeistviya. U Tungusskogo detonaciya byla vyzvana otoshedshei udarnoi volnoi, kogda on zatormozilsya do dozvukovoi skorosti (udarnaya volna ego obognala, otrazilas' ot zemli i vernulas' k nemu). U Vitimskog i Chelyabinskogo proizoshel, vidimo, kriticheskii nagrev vneshnih sloev, chto privelo k nachalu him reakcii, ili raskol meteorita vyzval detonaciyu. No ETO BYLA DETONACIYa,
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- O Chelyabinskom "fenomene" (A. I. Eremeeva/GAISh, Moskva, 25.03.2013 12:18, 7.9 KBait, otvetov: 18)
- >> Re: O Chelyabinskom "fenomene" (Gennadii Ivchenkov, 30.03.2013 0:33, 2.3 KBait)
- Re: O Chelyabinskom "fenomene" (A.P. Vasi, 30.03.2013 11:05, 607 Bait, otvetov: 2)
- Re[2]: O Chelyabinskom "fenomene" (A. V. Malkin, 30.03.2013 15:55, 8 Bait, otvetov: 1)
- Re[3]: O Chelyabinskom "fenomene" (M. A. Surin, 2.04.2013 17:22, 469 Bait)
- Re: O Chelyabinskom "fenomene" (A.P. Vasi, 30.03.2013 16:53, 230 Bait)
- Re: O Chelyabinskom "fenomene" (Gennadii Ivchenkov, 12.04.2013 5:02, 570 Bait)
- Re: O Chelyabinskom "fenomene" (A.P. Vasi, 12.04.2013 8:36, 949 Bait)
- Re: O Chelyabinskom "fenomene" (Gennadii Ivchenkov, 12.04.2013 23:41, 1.9 KBait)
- Re: O Chelyabinskom "fenomene" (A.P. Vasi, 13.04.2013 9:05, 644 Bait)
- Re: O Chelyabinskom "fenomene" (A.P. Vasi, 13.04.2013 9:25, 969 Bait)
- Re: O Chelyabinskom "fenomene" (Gennadii Ivchenkov, 14.04.2013 22:24, 3.1 KBait)
- Re: O Chelyabinskom "fenomene" (Gennadii Ivchenkov, 14.04.2013 22:26, 3.1 KBait)
- Re: O Chelyabinskom "fenomene" (A.P. Vasi, 15.04.2013 1:02, 2.1 KBait)
- Re: O Chelyabinskom "fenomene" (A.P. Vasi, 15.04.2013 1:20, 864 Bait)
- Re: O Chelyabinskom "fenomene" (Gennadii Ivchenkov, 22.04.2013 21:59, 385 Bait)
- Re: O Chelyabinskom "fenomene" (S. I. Gordeev, 27.05.2013 7:03, 117 Bait)
- Re: O Chelyabinskom "fenomene" (Gennadii Ivchenkov, 9.09.2016 22:48, 1.2 KBait, otvetov: 1)
- Re[2]: O Chelyabinskom "fenomene" (O. A. Stolova, 19.11.2016 15:22, 313 Bait)