In Greek mythology, Lampetia ("shining") was the daughter of Helios and Neaera; she was the personification of light. With her sister, Phaethusa, she guarded the cattle of Thrinacia[?]. She told her father when Odysseus' men tried to steal his cattle.
... rim of the groove, while the other end of the axis pushes against the lower rim of the groove. While the axis is slipping around inside the groove, the friction between ...