Solnechnoe galo nad Yutoi
11.04.2006 | Astronomicheskaya kartinka dnya

Videli li vy galo vokrug Solnca? Eto dovol'no rasprostranennoe yavlenie proishodit, kogda vysokie tonkie oblaka, soderzhashie milliony malen'kih ledyanyh kristallov, pokryvayut bol'shuyu chast' neba. Kazhdyi ledyanoi kristall deistvuet kak miniatyurnaya linza. Tak kak bol'shinstvo kristallov imeyut formu udlinennyh shestiugol'nikov, svet, vhodyashii v odnu gran' kristalla i vyhodyashii cherez protivopolozhnuyu, prelomlyaetsya na 22 gradusa.

Kvant izlucheniya
[glossarii]

(nem. Quant, ot lat. quantum – skol'ko) kolichestvo (porciya) elektromagnitnogo izlucheniya, kotoroe v edinichnom akte sposoben izluchit' ili poglotit' atom ili dr. kvantovaya sistema; elementarnaya chastica, to zhe, chto foton. "BES"

Pushinskoi Radioobservatorii 50 let
11.04.2006 16:11 | Astronet

11 aprelya 2006 goda Pushinskaya Radioastronomicheskaya Observatoriya Fizicheskogo Instituta im.P.N.Lebedeva RAN otmechaet svoe 50-letie. Pushinskaya radioastronomicheskaya observatoriya AKC FIAN - stareishee nauchnoe uchrezhdenie Rossii, zanimayusheesya radioastronomiei. Dnem rozhdeniya observatorii prinyato schitat'...