... Oggi ben noto che la Terra una sfera, o almeno di forma assai simile a una sfera (c' un rigonfiamento equatoriale causato dalla rotazione terrestre). Quando Cristoforo Colombo propose di raggiungere le Indie navigando ad ovest della Spagna, era anche lui convinto che la Terra fosse rotonda. ... Anche nell'antichit i naviganti sapevano che la Terra era rotonda e gli scienziati non solo supponevano che fosse una sfera, ma avevano anche stimato le sue dimensioni. ... Cristoforo Colombo . ...

... Per le scuole . ... Amici di Arcetri . ... Vademecum per CONSIP . ... Biblioteca . ... Breve storia dell'Osservatorio . ... Blind Injections, lтАЩinstallazione audiovisiva di Giacomo Raffaelli presentata nella biblioteca dell'Osservatorio Astrofisico di Arcetri il 9 ottobre in occasione di SONIC SOMATIC, un festival di tre giorni tre giorni densi di appuntamenti sonori e visivi organizzati da Trial Version e International Feel, †и visitabile fino al 16 dicembre. ... Blind Injections (in pdf) . ...

... Палки лыжные Fischer RC Carbon Z44512 . Базовая спортивная композитная модель для тренировок и лыжных прогулок. ... AV-ресивер . ...

Lectures . ... Home Lectures Lecture Series 2011-2012 Lecture Series 2011-2012 ? тАЬSearching for Earthlike WorldsтАЭ ? Debra Fischer . ... Lecture Series 2014-2015 . Lecture Series 2013-2014 . ... Lecture Series 2011-2012 . ... Observing Resources for Amateur Astronomers - Part 1: Beginning Observers . ... A History of the First Forty Years of the Amateur Astronomers Association . ... 2016 Amateur Astronomers Association of New York Designed by Press Customizr Powered by . ...

... Родился 23 января 1974 года в городе Боулдер (Boulder), штата Колорадо (Colorado). ... В 1996 году окончил Военное авиационное училище ВВС США (U.S. Air Force Academy). ... В 2004 году окончил школу летчиков-испытателей на авиабазе ВВС США Эдвардс (Test Pilot School at Edwards AFB). ... Майор ВВС США (в 2008 году). Подполковник ВВС США (в 2011 году). ... 29 июня 2009 года был зачислен в отряд астронавтов НАСА в составе 20-го набора НАСА в качестве кандидата в астронавты. ...

... JACK D. FISCHER (COLONEL, USAF) . ... EDUCATION: Centaurus High School, Lafayette, Colorado, 1992; Bachelor of Science in Astronautical Engineering, U.S. Air Force Academy, Colorado, 1996; Master of Science in Aeronautics and Astronautics, Massachusetts Institute of Technology, Cambridge, Massachusetts. ... In 2006, Fischer again returned to Edwards Air Force Base, as part of the F-22 Combined Test Force and 411th Flight Test Squadron testing the worldтАЩs only air dominance fighter, the F-22 Raptor...

. Album : asv-album :: Travels to distant places and countries :: 1999/09 Florence, Rome (Italy) :: 14/09 Across the Arno . Up . << Prev . Biblioteca Nazionale. Next >> . Album created by album generator from Marginal Hacks by David on Tue Jun 23 14:47:01 2015 .

... Tonight's Sky . ... The Magazine . News . Observing . ... Magazine . ... Gravitational wave search provides insights into galaxy evolution and mergers . ... The double star 54 Leonis, spiral galaxy NGC 3198, and emission nebula NGC 3199 . ... Open cluster NGC 2818, spiral galaxy NGC 2964, and spiral galaxy NGC 2976 . ... Astronomy for Kids . ... Debra Fischer . ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter. ... Astronomy Magazine . ...

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Full-Text Search . ... astro-ph . ... SAI VO . Search sort results by Date Relevance . ... Whitespace-separated words are treated as AND ed. Show 10 50 100 articles per page in Full Compact mode . Normalized to: Fischer, T. 55 article(s) in total . 182 co-authors, from 1 to 16 common article(s). ... Beacom, John F.. ... Berney, Simon. Bertolli, Michael G.. ... Blaschke, David B.. ... Crenshaw, D. Michael. D'Angelo, Davide. ... Dye, Simon. ... Hempel, Matthias. ... Hudepohl, Lorenz. ...

... Астронет | ... планета Астронет | ... Basic data: . ... HD 92788 b . ... 3.86 M J (Fischer et al) . 3.81 M J (Udry et al) . ... 00: From astrometry Han et al (2000) claim a preliminary mass of 54 M J and inclination of 176.0 o . ... 31 July: Fischer et al. revise the planet b parameters after new RV data. ... Planetary Companions to HD 12661, HD 92788, HD 38529 and Variations in Keplerian Residuals of Extrasolar Planets. ... paper . ... Ser. paper . ... Velocity curve and data (Fischer et al.) ...

We describe the operations concept and data reduction plan for the Mid-Infrared Instrument (MIRI) for the James Webb Space Telescope (JWST). ... We outline the user choices and expansion of these choices into detailed instrument operations. The data reduction plans for MIRI are split into three stages, where the specificity of the reduction steps to the observation type increases with stage. ...

Full Field Digital Mammography - System Development and Technical Performance . ... Imaging Research Program, Sunnybrook Health Science Centre, University of Toronto, Toronto, Ont. ... A prototype digital mammography system has been under development at the University of Toronto. ... This geometry allows for highly efficient rejection of scattered radiation and for simplicity of detector design as well as cost savings due to the smaller total detector area required. ...

... Extended Narrow-line Emission in the Bright Seyfert 1.5 Galaxy HE 2211-3903 Scharw chter, J. , Dopita, M.A., Zuther, J., Fischer, S., Komossa, S., Eckart, A. 2011, AJ, v. 142, Issue 2, August 2011, pp. ... The nearby QSO host I Zw 1: the stellar disk and adjacent objects Scharw chter, J. , Eckart, A., Pfalzner, S., Saviane, I., Zuther, J. 2007, A , v. 469, Issue 3, July III 2007, pp. ... Krips, M., Eckart, A., Neri, R., Zuther, J., Downes, D. Scharw chter, J. 2005, A , v. 439, Issue 1, pp. ...

... 2010 August 4 . Eclipse Shadow Cone Over Patagonia . ... Explanation: Sometimes, during a total eclipse of the Sun, a strange shadow of darkness can be seen stretching off into the distance. Called shadow cones, they are visible because the Earth's atmosphere is not completely transparent, scattering sunlight and hence appearing blue during the day. ... Visible above is a shadow cone caught during a sunset total solar eclipse visible last month from Patagonia , Argentina . ... About APOD | ...

TECHNICAL SPECIFICATIONS INPUT POWER Voltage Frequency OUTPUT POWE R Independent Outputs Open Circuit Voltage Current (maximum) Watts (maximum) Resolution HIGH VOLTAGE CONNEC TIONS DISPL AY Type Readouts A N A LO G O U T P U T S LCD Pressure, current, voltage , and programmable options 1 3000-7000 vdc (+/- configurable ) 50 mA 50 1 nA One 10kV SHV or Fischer 90-240 vac or 24 vdc 48-62 Hz DIGITEL TM SPC ...

... Bionic eyes. If our eyes could see in different wavelength bands, this is what the Sun would look like. ... Visible light, crucial to photosynthesis, is a type of radiation. ... At the heart of this revolution is the recognition that light travels as a wave. ... Dreams of Fields . ... By the time the fields go from strong to weak and back to strong, the wave has moved a certain distance, known as the wavelength. ... Red light, blue light, infrared light, ultraviolet light, radio waves, x-rays ? ...

Back to Centre of Atomic Data and Plasma Diagnostics . WWW Resources on Atomic and Molecular Data and Plasma Diagnostics . Personal Pages . Organization Pages . Projects Pages . Projects in this Centre . Data Bases . ... European Group for Atomic Spectroscopy . Opacity Project . Iron Project . Theoretical Atomic, Molecular, and Optical Community (TAMOC), USA . ...

... 2016, State of the Field: Extreme Precision Radial Velocities , PASP, submitted, arXiv:1602.07939 . Baluev R. Shaidulin Sh., ... Baluev R. et al., ... Baluev R., 2014, The Search for Periodic Components in Observational Data , Astrophysics, 57, p. 434 . ... MNRAS, 439, p. 673 . Baluev R., 2013, Detecting multiple periodicities in observational data with the multifrequency periodogram - I. Analytic assessment of the statistical significance , MNRAS, 436, p. 807 . ...

Preprints (recent) . Some semi-direct products with free algebras of symmetric invariants, arxiv:1510.01093v1[math.RT] . Symmetric invariants of Z 2 -contractions and other semi-direct products (2014), pdf . Nilpotent Gelfand pairs and spherical transforms of Schwartz functions III. ... Centres of centralisers in the classical Lie algebras (2006), pdf , ps ; published as a part of ``Surprising properties of centralisers in classical Lie algebras'', Ann. ...