The Moon And Tides

Kevin Elle Hayden T.j

Moon And Tides

Tides are periodic rises and falls of large bodies of water.Tides are caused by the gravitational interaction between the earth and the moon. The gravitational attraction of the moon causes the oceans to bulge out in the direction of the moon. Another bulge occurs on the oppisite side, sience the earth is also being pulled toward the moon (and away from the water on the far side). Sience the earth is rotating while this is happning, two tides occur each day.isaac newton (1642-1727) was the first person to explain tides scientifically. His explanation of the tides (and many other phenomena) was published in 1686, in the second volume of the principia.Spring Tidesspring tides are especially strong tides (they do not have anything to do with the season spring).They occur when the earth, the sun and then moon and the sun both contribute to the tides. Spring tides occur during the fuill moon and the new moon.The Phases Of The MoonAs the moon circles the earth, the shape of the moon appears to change ; this is because diffrent amounts of the illuminated part of the moon  are faceing us. The shape varies from a full moon(when the earth is between the sun and the moon) to a new moon (when the moon is between the sun and the earth).the proxigean spring tide is rare, unuseally high tide. This very high tide occurs when the moon is both unuseally close to the earth (at its closest perigee,called the proxigee) and in the New Moon phase (when the moon is between the Sun and the earth). the proxigean spring tide occurs at most once every 1.5 years.Neap TidesNeap tides are especially weak tides. They occur when the gravitational forces of the Moon and the Sun are perpendicular to one another (with respect to the earth)neap tides occur during quarter moons.