Celestial mechanics Celestial mechanics Celestial mechanics is the branch of astronomy that deals with the motions of objects in outer space. Historically, celestial mechanics applies principles of physics (classical mechanics) to astronomical objects, such as stars and planets, to produce ephemeris data. As an astronomical field of study, celestial mechanics includes the sub-fields of orbital mechanics, which deals with the launching and orbits artificial satellites, and lunar theory, a specialty which deals with the complications of the orbit of the Moon. Modern celestial mechanics tends to divide between five broad fields of study: All of the above fields overlap, but are sometimes
Poppy goddess depiction and use of poppies in the Greco-Roman myths is the symbolism of the bright scarlet colour as signifying the promise of resurrection after death and that the poppy was the emblem of the goddess Demeter. According to Theocritus for the Greeks Demeter was still a poppy goddess bearing sheaves and poppies in both hands ("Idyll" vii 157). Karl Kerenyi asserted that poppies were connected with a Cretan cult which was transmitted to the Eleusinian mysteries in Classical Greece: "It seems probable that the Great Mother Goddess who bore the names Rhea and Demeter, brought the poppy with her from