Compass, the history of his discovery Completed: student Victoria Shlykova. - презентация

1 Compass, the history of his discovery Completed: student Victoria Shlykova

2 What is a compass? Compass - a device that facilitates orientation on the ground. There are three fundamentally different types of compass: magnetic compass, gyrocompass and electronic compass. Compass - a device that facilitates orientation on the ground. There are three fundamentally different types of compass: magnetic compass, gyrocompass and electronic compass.

3 The compass consists of a casing a magnetic needle a fuse a front sight

4 Origin of the word The word "compass" comes from the old English word compass, meaning in the XIII-XIV centuries. "a circle".

5 The history of the creation of the first magnetic compass The compass was invented in China under the Song dynasty and was used to indicate the direction of movement along the deserts. The compass was invented in China under the Song dynasty and was used to indicate the direction of movement along the deserts.

6 In the middle of the XI century, an arrow was made from an artificial magnet in China. Most often it had the shape of a fish. She was lowered to the entrance, where she was swimming. The head of the fish always pointed to the south.

7 In Europe, the Italians first learned about the compass, then the Spaniards, the French, and then the English and the Germans. Then the compass was a cork and a magnetized needle floating in a container of water. Soon, to protect from the wind, it was covered with glass. Compass in Europe

8 In the middle of the XVI century, the arrow was fixed on the gimbal suspension to reduce the impact of rolling, and a century later the appearance of a rotating ruler was noted in the history of the compass, which increased the accuracy of the readings. Compass became the first navigation device for laying a path in the open sea. This allowed the sailors to go on a long voyage across the ocean. Contemporary compass

9 Thank you for attention