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The formula provides a natural generalization of the Coulomb's law for cases where the source charge is moving: = [′ ′ + ′ (′ ′) + ′] = ′ Here, and are the electric and magnetic fields respectively, is the electric charge, is the vacuum permittivity (electric field constant) and is the speed of light.
The official position taken by the Wikimedia Foundation is that "faithful reproductions of two-dimensional public domain works of art are public domain".This photographic reproduction is therefore also considered to be in the public domain in the United States.
Zeus pursues Ganymede on one side, while the youth runs away on the other side, rolling along a hoop while holding aloft a crowing cock. The Ganymede myth was depicted in recognizable contemporary terms, illustrated with common behavior of homoerotic courtship rituals, as on a vase by the "Achilles Painter" where Ganymede also flees with a cock.
The largest, Ganymede, is the largest moon in the Solar System and surpasses the planet Mercury in size (though not mass). Callisto is only slightly smaller than Mercury in size; the smaller ones, Io and Europa, are about the size of the Moon. The three inner moons — Io, Europa, and Ganymede — are in a 4:2:1 orbital resonance with
In his 1805 book Celestial Mechanics, in addition to laying out his mathematical argument for the resonant orbits of Io, Europa, and Ganymede, Laplace was able to use perturbations on the orbit of Io by Europa and Ganymede to provide the first estimate of Io's mass, 1.73 × 10 −5 of the mass of Jupiter, which was one-quarter of the modern value.
Ganymede diagram fr.png Ganymede diagram-it.svg This is a featured picture on Wikimedia Commons ( Featured pictures ) and is considered one of the finest images.
Articles relating to Ganymede and his depictions. He is a divine hero whose homeland was Troy. Homer describes Ganymede as the most beautiful of mortals, abducted by the gods, to serve as Zeus's cup-bearer in Olympus.
Cupid and Ganymede (1782) by Angelica Kauffman. Cupid and Ganymede or Venus Finds Cupid Playing Dice with Ganymede is a 1782 painting by Angelica Kauffman, one of four works commissioned from her by George Bowles [1] It is now in a private collection.