How does the moon control all tides on Earth?
Isaac Newton (1642 -1727) was the first person to explain tides scientifically. At the spot where the Moon is passing directly overhead of the Earth, the gravitational pull of the moon is higher which ‘pulls’ the oceans up (high tide). Another tidal bulge occurs at the opposite side of the Earth since the Earth itself is also pulled several feet closer to the Moon. Low tides therefore occur at the points on Earth half way between the 2 high tide bulges. Since the Earth rotates through 1 full rotation each day, High tides and low tides each occur twice per day. The Sun also affects the tides but because of it’s much greater distance from Earth, it affects them to much less extent. Still, when the Earth, the Sun, and the Moon are in a line, the gravitational forces of the Moon and the Sun together create especially strong tides called Spring tides (nothing to do with Spring the season). Finally, so called Proxigean Spring Tides are a rare, unusually high tide that occurs when the moon is