Historical Examples. 1  I do not contest the truth of the principle of continuity on which this view is based. 2  The continuity of nature does not fail saving for extraordinary instances. 3  The processes of his mind are characterised by continuity, consistency, and a kind of gathering intensity of movement.
In most places, two high tides and two low tides occur daily. Tides happen because the moon's gravity is pulling on the Earth and its oceans. The oceans are fluid and can move more than the land, so they move towards the moon. As the moon revolves around the Earth, it creates high tides and low tides.
Another type of tide, the neap tide, occurs twice per month. However, this tide type occurs when the Moon's and Sun's gravitational forces form a 90-degree angle with respect to the Earth. Neap tides happen during the first and third quarter moons.