Perigean spring tide Perigean spring tide A proxigean spring tide (also known as a perigean spring tide) is a tide that occurs three or four times per year when the Moon's perigee (its closest point to Earth during its 29.5-day elliptical orbit) coincides with a spring tide (when the Earth, Sun and Moon are nearly aligned every two weeks). This tide usually adds only a couple of inches to normal spring tides. The Moon's orbit around Earth is elliptical, which causes the Moon to be closer to Earth and farther away at different times. The Moon and the Sun are aligned every two
What Kind of an American are You? found at Pritzker Military Museum & Library. The song urges Americans (specifically immigrants) to use this war to prove their loyalty to the United States; whether that may be by fighting or by simply standing behind the US's actions. For those who show no support, this question is posed: "What are you doing over here?" It upholds the "us-against-them" mentality; the "them" in this case is Germany. The chorus is as follows: What Kind of an American are You? What Kind of an American are you?, also known as What Kind of American are you?, is a World War I