Tidal range Tidal range Tidal range is the height difference between high tide and low tide. Tides are the rise and fall of sea levels caused by gravitational forces exerted by the Moon and Sun and the rotation of Earth. Tidal range is not constant but changes depending on the locations of the Moon and Sun. The most extreme tidal range occurs during spring tides, when the gravitational forces of both the Moon and Sun are aligned (syzygy), reinforcing each other in the same direction (new moon) or in opposite directions (full moon). During neap tides, when the Moon and Sun's gravitational
What Are You Going to Do to Help the Boys? song was written for both piano and voice. The song is a call to action. It encourages listeners to buy liberty bonds, especially if they are staying home while soldiers fight overseas. The voice states that it doesn't matter one's age, where he is from, or who he is. Uncle Sam expects everyone to help in the war effort. The chorus is as follows: The sheet music can be found at Pritzker Military Museum & Library. What Are You Going to Do to Help the Boys? "What Are You Going to Do to Help the Boys?" is a World War