Picture Of Magnetometer Coast And Geodetic Survey

Picture Of Magnetometer Coast And Geodetic Survey

Description

Coast and Geodetic Survey Magnetometer No. 18.

This magnetometer was used in the magnetic survey of Maryland conducted in the 1890s.

Licence

Public domain

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Magnetometer

A magnetometer is a device that measures magnetism. Magnetometers can accurate measure magnetization, strength and direction of the magnetic field around them. The first magnetometer was introduced by Carl Friedrich Gauss in 1833. They are today used in an incredible variety of devices, including mobile phones.

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The solar compass is a precision surveying instrument that makes use of the sun's direction that allows surveyors to determine the true north direction by reference to the sun. Sun compass was first invented and patented by William Austin Burt on February 25, 1836.