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 What year was the magnetic compass invented?

Answer The magnetic compass has been in use for more than 2,000 years. The Chinese invented the first magnetic compass between 221 and 206 B.C.E. The first magnetic compasses used iron oxide to determine ... Read More »
http://www.answerbag.com/q_view/2051180

Top Q&A For: What year was the magnetic compass invented

Where was the magnetic compass invented?

The magnetic compass is a Chinese invention made in 221-206 B.C. during the Qin Dynasty. Chinese navigators used compasses about 1000 B.C. By the 1100s it was used by European sailors.Source:Solar ... Read More »
http://www.answerbag.com/q_view/1916291

Why gyro compass is used in ships instead of magnetic compass?

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... Read More »
http://wiki.answers.com/Q/Why_gyro_compass_is_used_in_ships_instead_of_magnetic_compass

What Is the Net Magnetic Force on a Compass Needle?

A compass needle is a magnetized bar that is mounted on a needle, allowing it to pivot. It aligns itself with the Earth's magnetic field to point in the direction of the magnetic North Pole.
http://www.ehow.com/facts_6826102_net-magnetic-force-compass-needle_.html

What will happen if you place a magnetic compass in an electric circuit?

If you place a magnetic compass in an electric circuit, the magnetism produced by the circuit will turn the compass needle. The more current the circuit carries, the stronger its field will be, and... Read More »
http://www.answerbag.com/q_view/2256787


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