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http://hea-www.harvard.edu/~fine/opinions/wheelsize.html.
http://hea-www.harvard.edu/~fine/opinions/wheelsize.html.
1. Motion in a Circle
... Electric Forces . 19.Motion in a Circle . ... In the absence of forces, motion in a straight line and constant velocity continues indefinitely. ... Each rotation the stone covers a distance . ... Since its velocity v equals the distance it moves in one second, one finds . ... while the actual motion brings it to some point D on the circle, whose center will be denoted by O. In the absence of forces, motion in a straight line and constant velocity continues indefinitely. ...
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Ссылки http://www.iki.rssi.ru/mirrors/stern/stargaze/Scircul.htm -- 12.1 Кб -- 02.06.2006
[ Сохраненная копия ] Ссылки http://www.cosmos.ru/mirrors/stern/stargaze/Scircul.htm -- 12.1 Кб -- 22.12.2007
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[ Сохраненная копия ] Ссылки http://www.cosmos.ru/mirrors/stern/stargaze/Scircul.htm -- 12.1 Кб -- 22.12.2007
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2. Frames of Reference: The Basics
... To derive the motion of a penny dropped inside an airliner moving at 600 miles/hr (about 1000 km/hr)--should we calculate it with respect to the interior of the airliner, or with respect to the ground? ... And if a similar penny is let go inside an orbiting spaceship--should its motion be calculated relative to the interior of the spaceship, or relative to the Earth outside? ... Each such choice is known as a frame of reference . Some possible frames are -- the interior of the airliner, . ...
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Ссылки http://www.iki.rssi.ru/magbase/REFMAN/STARGAZE/Sframes1.htm -- 7.5 Кб -- 21.12.2007
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3. The High-Z SN Search Description
... It turns out one possibility is a form of matter/energy invented by Einstein in the 1920s to make sure his equations of General Relativity did not predict the Expansion of the Universe. Although Einstein was willing to predict several things with his equations of General Relativity, he obviously thought an expanding Universe was too much, and so he invented the Cosmological Constant, which repels itself, and was meant to balance the force of gravity, and make the Universe static. ...
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Ссылки http://www.mso.anu.edu.au/~brian/PUBLIC/data.html -- 9.6 Кб -- 01.10.2012
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4. http://www.gao.spb.ru/english/personal/malkin/publ/zm14e.pdf
... Impact on source motion in Galactic coordinate system is given by Kovalevsky (2003), Malkin (2011) l cos b = -A sin l, b = -A cos l sin b, where A = R0 02 /c is the galactocentric acceleration called hereafter the GA constant. ... We just have to return to the traditional many-centuries-old astrometric practice of modelling the position of a celestial object as a linear trend with two parameters: the position at the initial (conventional) epoch and the apparent (proper) motion. ... 2011). ...
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Ссылки http://www.gao.spb.ru/english/personal/malkin/publ/zm14e.pdf -- 534.2 Кб -- 17.01.2015
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5. http://www.naic.edu/~phil/misc/azwindblown.html
On 6 may 2001 the azimuth was parked at az=214.4 degrees and the dome was at 19 degrees za with motors off and the brakes on. At 7:40:49 the azimuth started moving do to the wind. ... The operators began moving the dome downhill at azimuth 258 degrees. The dome was at 18 degrees by the time the azimuth stopped moving. The azimuth rail had been greased the previous week. ... The red shows the dome position during this time (the top red line is 19 degrees and the bottom one is 18 degrees). ...
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Ссылки http://www.naic.edu/~phil/misc/azwindblown.html -- 5.8 Кб -- 12.05.2001
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6. Phil Plait's Bad Astronomy: Bad News
... What's New? Bad Astronomy . ... News . ... In a nutshell, the answer is that you would fall down the hole, accelerating (that is moving faster and faster) all the way to the center of the Earth. ... Although gravity would get weaker as you approach the center [of the Earth], your motion would keep you accelerating [the emphasis is mine]. ... Although gravity would get weaker as you approach the center, your motion would keep accelerating. which is correct! ... 2008 Phil Plait. ...
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Ссылки http://www.badastronomy.com/bad/news/marilyn4.html -- 22.6 Кб -- 09.04.2016
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7. http://www.atnf.csiro.au/research/WALLABY/Wallaby2010/GMeurer-Wallaby2010.pdf
... Stars form out of the molecular ISM, not HI · So why should there be any connection? Bigiel et al. 2008, AJ, 136, 2846) Correlations from SINGG X-axis rxy Slope y x SFR 0.76 0.71 0.28 0.40 R 0.80 0.89 0.27 0.30 The THINGS SFL 5 1. SFR ~ H2 (N = 1.0) Linear relation between molecular gas and SFR 2. ... Q(2 Fluids) = constant ISM disks maintained at constant stability Leroy et al. 2008, AJ, 136, 2782) , Bigiel et al. ... 2008, AJ 136, 13 461) How many big galaxies? ...
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Ссылки http://www.atnf.csiro.au/research/WALLABY/Wallaby2010/GMeurer-Wallaby2010.pdf -- 2345.4 Кб -- 08.12.2010
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8. http://zebu.uoregon.edu/1998/ph101/l8.html
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Ссылки http://zebu.uoregon.edu/1998/ph101/l8.html -- 2.3 Кб -- 22.10.1998
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9. XWare > APOD
... Phobos 360 . ... What does the Martian moon Phobos look like? ... The rotation is actually a digital illusion -- tidally-locked Phobos always keeps the same face toward its home planet, as does Earth's moon. ... Geminid Meteors over Chile . ... From a radiant point in the constellation of the Twins, the annual Geminid meteor shower rained down on planet Earth over the past few weeks. ... SDO s Multiwavelength Sun . ... Geminid Meteors over Teide Volcano . ... Yutu Rover Rolls onto the Moon . ...
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Ссылки http://www.astronet.ru/db/xware/apod.html?page=53&d=2015-05 -- 15.0 Кб -- 12.04.2016
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10. The Damped R-L Iteration
Next: Summary Up: Image Restoration Using the Previous: Noise Amplification . ... The damped R-L iteration starts from the likelihood function . ... With this new likelihood function, we can follow the steps outlined above to derive the damped R-L iteration: . ... both the standard R-L method and the damped iteration to HST observations of Saturn; again, the noise in the restored image is greatly reduced without significantly blurring the sharp edges of the planet and its rings. ...
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Ссылки http://www.stsci.edu/stsci/meetings/irw/proceedings/whiter_damped.dir/section3_3.html -- 9.2 Кб -- 18.04.1994
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11. Period Criteria
... Actual stars are expected to be more complicated than these simulations. ... The spot may be entirely visible most of the time (one would observe a prolonged flux minimum low), and then part of it may disappear over the horizon briefly and then return (slow rise and then fall back to constant level). ... With the set of observations taken here, I have information available from several comparison stars and color information. ... The period found must be consistent with the data from any given night....
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Ссылки http://hea-www.harvard.edu/~swolk/thesis/period/node9.html -- 7.2 Кб -- 02.10.2012
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12. Equations for T
... Newcomb, Simon, "On the dynamics of the Earth's rotation, with respect to the periodic variations of latitude", Monthly Notices of the Royal Astronomical Society , 52 (1892), 336-341 [ Local PDF ADS link ]. ... Stephenson, Francis Richard Houlden, Michael A., "The Accuracy of TuckermanтАЩs Solar and Planetary Tables", Journal for the History of Astronomy , 12 (1981), 133-138 [ Local PDF ADS link ]. ... Astronomy and Astrophysics , 322 (1997), 347-351 [ Local PDF ADS link ]. ...
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Ссылки http://astro.uni-altai.ru/~aw/DeltaT/ -- 21.9 Кб -- 27.02.2014
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13. http://www.mrao.cam.ac.uk/~anthony/latex/Garnavich.ps
Properties of the Dark Energy P. M. Garnavich University of Notre Dame A non-zero cosmological constant is only one of many possible ex- planations for the observed accelerating expansion of the Universe. Any smooth, dark energy with a signi cant negative pressure can drive the acceleration and this generic solution has been dubbed \quintessence". ... Quintessence can be parameterized by its equation of state, w = p=, which in the most general form can vary over time. ...
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Ссылки http://www.mrao.cam.ac.uk/~anthony/latex/Garnavich.ps -- 23.2 Кб -- 21.05.2000
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14. III All-Russian Research and Application Conference 'Actual Issues of Research
... Research areas . ... Events III All-Russian Research and Application Conference 'Actual Issues of Research in Avionics: Theory, Service, Development' - 'AVIATOR' . ... e-mail: aviator.vrn@mail.ru . ... State and development trends of electrical equipment and electro-optical systems of aircraft. ... Current state and development trends of information and management complex for aircraft. ...
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Ссылки http://www.ssau.ru/engevents/show/?id=591 -- 20.6 Кб -- 18.01.2016
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15. Mean astrophysical parameters from LEDA
This page gives the name and meaning of the various parameters which can be queried in HyperLeda through SQL requests . ... real . ... actual error on t . ... log 10 of apparent major axis diameter d25 at 25 mag.arcsec -2 (d25 in 0.1') . ... actual error on logd25 . ... Apparent maximum rotation velocity of gas . ... log 10 of apparent corrected diameter (dc in 0.1') . ... total apparent corrected B-magnitude . ... total apparent corrected U-B color . ... Questions: leda@univ-lyon1.fr ...
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Ссылки http://www.sao.ru/fetch/HL/leda/table.html -- 21.1 Кб -- 23.12.2013
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16. Actually, That Was Actually An Awful Line (n/t) - an Astronomy Net Exploration
Astronomy Discussion Forums . Forums: . ... Discussion Forums . ... Actually, That Was Actually An Awful Line (n/t) . Forum List | ... Post Message | ... Posted by Aurino Souza on October 15, 2002 16:53:52 UTC . ... Login to Post . ... www.astronomy.net . About Astronomy Net | Advertise on Astronomy Net | ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...
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Ссылки http://www.astronomy.net/forums/exploration/messages/49.shtml -- 13.0 Кб -- 09.04.2016
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17. Image: You probably get bored to see hotel again :-) But actually, there wasn't
. Album : Фотоальбом Сергея Аюкова :: Travels to distant places and countries :: 1996/05 Greece, Chalkidiki :: Village Kallithea. The "8th European Meeting on Solar Physics" was held there. Up . << Prev . You probably get bored to see hotel again :-) But actually, there wasn't much interesting around :-) . Next >> . Photo album generated by photo album generator from MarginalHacks by Dave Madison on Wed Jun 5 20:38:31 2013 .
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Ссылки http://crydee.sai.msu.ru/album/trips/1996.05.Greece/chalkidiki/tn/halk10.jpg.index.html -- 5.4 Кб -- 05.06.2013
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18. xmmtrack: XMM orbit TRACKing
... xmmtrack . ... xmmtrack is an interactive IDL application that visualizes the orbit and attitude data in an ODF in the form of a 3-D animation sequence. The presented scenery includes an astronomically accurate simulation of the Earth-Sun system plus the actual and predicted trajectory of the XMM satellite on its path around the Earth. ... Please note: XMM's orbit is highly time variable and the predicted orbit will significantly deviate from the actual trajectory if the reference epochs differ. ...
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Ссылки http://xmm.vilspa.esa.es/sas/8.0.0/doc/tools/node11.html -- 8.5 Кб -- 02.07.2008
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19. The Fragmentation of Comets
Every body is held together by two forces, its self-gravitation and its internal strength due to molecular bonding. ... A few of these cases have been obviously attributable to the tidal forces of Jupiter (Comet Brooks 2 and Comet Shoemaker-Levy 9) or the Sun (the Kreutz comet family), while other splittings have to be attributed to less obvious causes. ... They always approach the Sun to within 3 million kilometers (1.9 million miles) or less, and some have actually hit the Sun. ...
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Ссылки http://www.iki.rssi.ru/solar/eng/comet/frag.htm -- 5.3 Кб -- 15.10.1997
[ Сохраненная копия ] Ссылки http://www.arcetri.astro.it/irlab/Astro/solar/eng/comet/frag.htm -- 6.1 Кб -- 15.03.1998
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[ Сохраненная копия ] Ссылки http://www.arcetri.astro.it/irlab/Astro/solar/eng/comet/frag.htm -- 6.1 Кб -- 15.03.1998
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20. ATLAS aerospace invites you to participate in cosmonaut and astronaut training
... Space flight . ... Simulators . ... Space camp . Space Hotel . ... The "ATLAS Aerospace" company invites all the volunteers to pass a course of space training in the simulators of the Yuri Gagarin Russian State Scientific-Research and Test Center of Cosmonaut Training. ... The staff of the Mission Control Center regularly participates in such training, thus enabling to improve its interaction with the crew. ... Copyright 2000-2016 ATLAS Aerospace . ...
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Ссылки http://www.atlasaerospace.net/eng/tren.htm -- 33.3 Кб -- 09.04.2016
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