The compass has been an important part of navigation, especially for ships at sea. The are important because they allow ships to steer in the direction they choose to follow the compass
vasco di gama used ships,compass,telescope etc:
He used spears and compass and a ship to transport to find diffrent land
The Saracom MC 18 magnetic compass typically uses a special fluid called compass oil. If you have a big bubble in the compass, it may indicate that there is a leak or a problem with the fluid level. It is recommended to have a professional inspect and service the compass to resolve the issue.
The compass used to find direction at sea is called a magnetic compass. It consists of a magnetized needle that aligns itself with the Earth's magnetic field, indicating north. Navigators often use variations of this compass, such as the gyrocompass, which is less affected by magnetic interference and is used for more precise navigation on ships.
Now days all ships have GPS. They also use a compass and radar.
The Saracom MC180 magnetic compass typically uses a special type of damping fluid called Stoddard solvent. This fluid helps dampen the movement of the compass card, reducing oscillations and allowing for more accurate readings.
Compasses have been used for a long time, mainly by seafarers & explorers. It is the oldest navigation instrument, and it has been a very important tool for navigation at sea for centuries. It has been used since the middle ages, allowing ships to sail the chosen course. Also, by taking bearings with a compass, people could find their position on a chart.
The purpose of a compass rose is to allow you to align your compass with it on a navigational map, it is very relevant for people trying to navigate ships or other marine vehicles.
Because the ships might go to different directions(maybe)
computing ships' courses
Because a ship is made of metal, which can affect the accuracy of a standard magnetic compass. Also, a gyrocompass is is better able to point to the true north, which is more accurate to navigation than magnetic North, which is not actually true North. Link below: