There are two main types: Magnetic compasses and gyro compasses.
Four basic types of magnetic compasses exist: fixed dial, floating dial, orienteering and cruiser. All four types determine direction but each has special features that are specific for particular uses.
The plural possessive for compasses is compasses'.
Compasses fall mainly into two categories: fixed steering compasses and portable hand bearing compasses. There is a third type, called the telltale compass, that is built upside down and fastened to the deckhead so that a person lying in a bunk can see the ship's course displayed overhead, but it's now fairly rare.
The possessive form of compass is compass's.
Compasses is the plural form of compass.
No. compasses use a complex spinner.
They used compasses to navigate on the sea and on land.
I don't think you can. You can construct a 60º angle by compasses, but 65º sounds like a "Trisect" problem which (despite many claims to the contrary over many years) is not mathematically possible.
Yes compasses can harm the environment if you lave it on the sheet .
Electro magnets can be used to attract metals temperarily while permanent magnet would be used for compasses.
A lensatic compass is a compass with a magnifying glass on the sight which makes it easier to view the needle. These types of compasses are frequently used in the military.
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