Earth tide lunar and the solar tidal maxima and minima (bulges and depressions) add together for the greatest tidal range at particular latitudes. At first- and third-quarter phases of the moon, lunar and solar tides are perpendicular, and the tidal range is at a minimum. The semi-diurnal tides go through one full cycle (a high and low tide) about once every 12 hours and one full cycle of maximum height (a spring and neap tide) about once every 14 days. The development of a systematic theory of Earth tides was started by George H. Darwin in 1879, and was then furthered by
Full Moon (Brandy song) contributing most to its track listing with his team, Norwood decided to record with several producers for the album, including Unsung Entertainment head Mike City, with whom she had previously worked on the song "Open" for the soundtrack of the animated comedy film "Osmosis Jones" (2001). According to City, he wrote "Full Moon" in "two or three weeks, writing a line a day." Though Norwood and City crafted several more songs, the pair was insecure if "Full Moon" was going to make it to the final track listing since it differentiated stylistically from what the singer had recorded before. "I'm