... Free image alignment/stacking/processing Software . My lunar drawings . ... REAL TELESCOPES . ... Download Pocket-Aberrator . ... The Aberrator is freeware that generates star-testing images to show the effects of aberrations (distortions) influencing the quality of a telescopes performance. ... The idea to make a program like the Aberrator I got after studying many internet-sites on star-testing and often the effects of certain aberrations were only available as literal descriptions. ...
... GRIN lenses for telecommunication optics applications ? GTC (gradient telecom) lenses. ... GTC lenses are used in different fiber-optic devices: collimators, couplers, isolators and WDM etc . ... 2.Diameter . GTC lenses diameters are 1.0 mm, 1.8 mm, 3.0 mm and 4.0mm. ... 1.0 mm -3.0 mm diam GTC lenses are supplied in 0.22P, 0.23P, 0.25P, 0.27P and 0.29P length. 4.0 mm diam GTC lenses are supplied in 0.11P length. ... GTC . ... 3 scratches with 5mkm max width and 200mkm max length are allowed . ...
... 000, 113 (2010) Printed 21 September 2011 A (MN L TEX style file v2.2) A universal ultraviolet-optical colourcolourmagnitude relation of galaxies I1gor V. Chilingarian1,2, and Ivan Yu. ... Received 2011 Sep 15; in original form 2011 Feb 6 ABSTRACT The bimodal galaxy distribution in the optical colourmagnitude diagram (CMD) comprises a narrow "red sequence" populated mostly by early-type galaxies and a broad "blue cloud" dominated by star-forming systems. ...
Как сделать атомную бомбу? . ... За последние лет пятнадцать рассекречены и обнародованы документы, в деталях описывающие особенности конструкции и процесс изготовления первой британской атомной бомбы, а также подробности южноафриканской программы по созданию ядерного оружия. ... Некоторые независимые эксперты утверждают, что уже похищено достаточно урана и плутония, чтобы сделать несколько атомных бомб. ... Свежее топливо в твэлах может состоять, например, из 3,3% 235U и 96,7% 238U (в виде двуокиси). ...
The Archeops experiment aimed at measuring the cosmic background emitted just after the Big Bang. The study of this radiation is essential to obtain precise information on the evolution of the Universe: density, Hubble constant, age of the Universe.. To achieve this goal, measurements have been done with devices cooled down at 100mK temperature placed at the focus of a warm telescope. ... 28960 visitors . ...