 | Jupiter's Orbit Eccentricity Precession, Last 10 Myr Jupiter's precession of its orbit eccentricity (e) and perihelion longitude (omega) over the last ten million years, a result of the planets' gravitational pulls on each other. The center + is for a circular orbit. Referred to present (J2000) equinox and ecliptic. Calculated from the quasiperiodic-series approximations in J. Laskar, "Secular evolution of the Solar System over 10 million years", Astronomy and Astrophysics, 198, 341-362 (1988). http://adsabs.harvard.edu/abs/1988A&A...198..341L |
 | Saturn's Orbit Eccentricity Precession, Last Million Years Saturn's precession of its orbit eccentricity (e) and perihelion longitude (omega) over the last million years, a result of the planets' gravitational pulls on each other. The center + is for a circular orbit. Referred to present (J2000) equinox and ecliptic. Calculated from the quasiperiodic-series approximations in J. Laskar, "Secular evolution of the Solar System over 10 million years", Astronomy and Astrophysics, 198, 341-362 (1988). http://adsabs.harvard.edu/abs/1988A&A...198..341L |
 | Rings Of Saturn - October 2007 http://anthmartian.googlepages.com/thisislandearth Visit above site for more of my movies, images, and space projects. This is a time lapse movie of Saturns rings imaged by the Cassini Space Craft. The movie reveals complex and chaotic movement within the rings, moons, moonlets, and other debris in orbit of Saturn is visible here. Some amazing seuences are visible, including a "part vortex" created as a small moon of Saturn brushes it way around its orbit touching Saturns outermost ring. |
 | Holy Cross Precession This video demonstrates the Holy Cross. Original author of this video is Nick Anthony Fiorenza and Marius Giurgi. |
 | Chain Precession Drive This is my (now 100%) Lego Chain Precession Drive, 10:1 Ratio with only 1 Cog!!! Thanks to Philo for pointing me in the 100% Lego direction! see my counter using this mechanism: http://uk.youtube.com/watch?v=0TL99Wn0pGA More on Brickshelf http://www.brickshelf.com/cgi-bin/gallery.cgi?f=296899 |
 | Gyroscope precession gyro precision on wheel (from howstuffworks.com ) |
 | Isabelle and Jung Isabelle and Jung singing and dancing and yeahh |
 | The Doomsday Clock 1/9 The Doomsday Clock - Astronomical Precession and 2012 |
 | Saturn's Rings During a Ring Plane Crossing This life-like movie sequence captures Saturn's rings during a ring plane crossing--which Cassini makes twice per orbit--from the spacecraft's point of view. The movie begins with a view of the sunlit side of the rings. As the spacecraft speeds from south to north, the rings appear to tilt downward and collapse to a thin plane, and then open again to reveal the un-illuminated side of the ring plane, where sunlight filters through only dimly. The striking contrast between the sunlit and unlit sides of the ring plane can now be fully appreciated, thanks to the sense of continuity in time and space provided by this brief clip. The movie consists of 34 images taken over the course of 12 hours as Cassini pierced the ring plane. Additional frames were inserted between the original images in order to smooth the motion in the sequence -- a scheme called interpolation. Six moons careen through the field of view during the sequence. The first large one is Enceladus, whose slanted motion from the upper left to center right nicely illustrates the inclination of its orbit with respect to the rings. The second large one, seen in the second half of the movie, is Mimas, going from right to left. This movie begins with a view looking toward the lit side of the rings from about 9 degrees below the ring plane. It ends when the spacecraft is 8 degrees above the ring plane. The clear-filter images in this movie sequence were taken with the Cassini spacecraft wide-angle camera on Jan. 17, 2007, at a distance of approximately 900,000 kilometers (500,000 miles) from Saturn. Image scale is 48 kilometers (30 miles) per pixel. |
 | Saturn's rings 3D animation, a flyby through the particles that compound the Saturn rings Credit: ESA/Hubble (M. Kornmesser & L. L. Christensen) |
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