Introduction

Today, we will focus on an interesting effect caused by the Moon: tidal waves.

You may know that massive bodies have an attractive force - gravity. The Moon's gravity pulls the water in the oceans, which causes the sea level along the ocean coasts to temporarily rise or fall. The increased level is called high tide, and the decreased level is called low tide.

How much, do you think, can the difference between high and low tide be in the world?

The distance between high tide and low tide sea levels can reach up to 16 meters in the Bay of Fundy in Canada, and the lowest differences are in the Mediterranean, Baltic, and Black Seas, where they are only a few centimeters. We will use 50 cm as an average value as it is convenient for the task.