... Meade Instruments Corporation . ... Choosing the Right Microscope . ... On most microscopes the specimen glass remains fixed while the microscope's objective lens and eyepiece move as a unit up or down to focus the image. ... Eyepieces of varying powers work with objective lenses of varying powers to yield a range of microscope magnifications. ... Magnification: The effective magnification of a microscope is determined by multiplying the eyepiece power by the objective lens power . ... about meade |...

Program "Ма riner ":research of Venus . ... It was established also, that the period of rotation of Venus around axis - long, about 243 earth day is, more, than cycle time around of the Sun (224,7 day), therefore on Venus "day" is longer than year and the calendar is completely unusual. ... This vehicle has only once passed about Venus. ... They also have confirmed, that the period of rotation of the upper layer of clouds only 4 day, so a structure of a Venus atmosphere not similar on earth. ...

... Circle rotations. ... Symbolic dynamical systems: sequence spaces, Markov chains, adding machines. Birkhoff recurrence theorem. ... Tent map. ... Expanding maps of a circle. ... Topological entropy. ... Finiteness of entropy for Lipschitz self-maps. Entropy for symbolical dynamical systems. ... Entropy for one-dimensional maps. Entropy for expanding maps and the Misiurewicz-Przytycki theorem. ... Structural stability of expanding circle maps. ... SRB measures for expanding maps. ...

RECREATIONAL TELESCOPES . ... ASTRONOMICAL TELESCOPES . ... Home Products Telescopes Astronomical Telescopes ASTELE™ 152MN . ... Whatever eyepiece you're using at the time is your finder eyepiece. ... 152MN is 4.4, so, unlike telescopes with much longer ?-ratios, you're able to use low magnification (27.4 X, 2.3° with the 25 mm PlЖssl eyepiece) which produces bright images and wide fields of view for those dim galaxies, nebulae, and very large star clusters, but the ASTELE? ... BK7 optical glass . ...

... part 2 | ... Part 1 . The new concept of formation and development of the Solar system. ... Thus, the initial pulse of the rotation of a protosolar cloud of the solar system was determined as a result of the diversion of a part of the moment of the rotational pulse of the Galaxy. ... Besides this new approach to the pre-solar system as a system of the destroyed vortex structure, we can understand now a number of other peculiarities of the Solar system's structure. ...

... For more distant stars we must use other techniques. ... Hence if we see a distant galaxy and can pick out any cepheids lying within it, we can calculate its distance. ... Here then is another method to gauge the size of the Universe and there are yet more. volume at high enough temperature a nuclear fusion reaction sweeps across the white dwarf's surface and eventually we will see a spectacularly bright new star (hence nova) in our skies. ... Why is this relevant to the size of the Universe? ...

... VaST is a software tool for finding variable objects on a series of astronomical images. ... VaST performs object detection and aperture photometry using SExtractor on each image, cross-matches lists of detected stars, performs magnitude calibration with respect to the first (reference) image and constructs a lightcurve for each object. ... VaST FITS image viewer ./pgfv . ... Part I" PZP, vol. ... K. V. Sokolovsky, S. A. Korotkiy; "New Variable Stars Discovered by the NMW Survey" PZP, vol. ...