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
Sliver of a Full Moon Sliver of a Full Moon Sliver of a Full Moon is a play by Mary Kathryn Nagle. The play was written in 2013 following the re-authorization of the Violence Against Women Act (VAWA). Mary Kathryn Nagle is an enrolled member of the Cherokee Nation, and has written and produced several plays involving law and Indian affairs. The play is told in a semi-linear way, juxtaposing the stories of real people who suffered under the jurisdiction laws involving Indian reservations in the United States with the efforts of several indigenous men and women to re-authorize the VAWA bill. Most productions of