The simple truth is that they are still in wide use and probably always will be.
magnetic compass will stop working.
Metal objects can interfere with the Earth's magnetic field around the compass, causing inaccurate readings. This is because the metal objects can create their own magnetic fields that disrupt the compass needle's ability to point towards the Earth's magnetic pole.
In a compass box we have a small magnetic needle to which an aluminum pointer is attached at right angle. Since it has a magnetic piece, it has to respond to other magnets. In some boxes we have the pointer small in size is itself a magnet pivoted freely.
stop using your car :D
When people stop using staroids your body will get used to the stariods and got obese
And? Please clarify you question not sure what you are asking...thanks !
A compass will never stop pointing north unless it is close to a magnet.
I believe that people should stop using animals for scientific use
1912
Not at all well
The best possible way to stop cars from using gas is no to drive them.
The needle of a compass must be free to rotate so that it can point to magnetic north. The magnetic field of the earth not only rotates the compass needle horizontally but also pulls one end down. If it pulls the needle down it can stop it from turning freely so on many compasses the needle is balanced for use in a specific zone. There are 5 zones. Austraila and Britain are in different zones. This means the needle may not be level if used in the other's zone. Needles are balanced by making one end of the needle longer or by adding weight to one end of the needle.