The True Mechanism of Ocean Tide

Tides are the rise and fall of sea levels caused by the combined effects of the gravitational forces exerted by the Moon and the Sun, and the rotation of the Earth. Wiki

Scientists have been mistaken since 150 BC. Gravity is impossible to cause tide. Gravity holds water at sea level. 

Tide is caused by sunlight circling the earth.

Sunlight energy in the atmosphere and seawater moves around the earth westward, created ocean current and tide, atmosphere wind, earth magnetic force (field), and polar light.