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
Mekhong Full Moon Party Mekhong Full Moon Party Mekhong Full Moon Party (; ; literally, "The 15th Day of the 11th Month") is a 2002 Thai comedy-drama about the Naga fireballs that arise from the Mekong at Nong Khai on the full moon in October. Written by Jira Maligool, the film was also Jira's directorial debut. The film takes a semi-documentary approach to its subject, examining the phenonmenon and its accompanying festival, which draws thousands of people to Nong Khai each year, as well as providing a glimpse at Isan culture, Thai folklore and such practices as eating insects. Khan, a Nong Khai native