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Homemade compass

When a person is in extreme conditions, usually it does not take in anything that is essential for survival, including a compass. Then that which is necessary to find an alternative or substitute to make from scrap materials. Today we talk about how to make a substitute for a compass. It can be applied to a homemade compass orientation to the cardinal, not more than shopping.

There is an element, without which it is impossible to make a homemade compass. Need a piece of steel wire, sewing needle, a nail. Without steel, a metal rod will not work. It just so happened that the work of all compasses based on the fact that the geographic, north and south poles of the Earth practically coincide with the magnetic belts. So, in essence, a compass does not show the geographic and the magnetic pole. Ferrous metals, steel, magnets have a tendency to react to the Earth's magnetic poles. So without a piece of steel wire, in one form or another, in kompasostroenii do nothing.

The first variant. Take a thin thread, it is bound piece of steel wire or a needle, which must be magnetized before. Magnetize the magnet wire can be on or rubbing, of wool, hair. We need to take one end of the thread and tie in the center of gravity of the wire (needle, a nail). It is in the center of gravity, but not in the middle. The second end of the thread is taken in hand, the length of thread must be at least 40cm. When the needle on a string no longer turn around and come into balance, it will display a line north-south.

Compasses

The second option. Need hole, a pit with water bowl. You can spend a similar number and directly on the smooth surface of the reservoir, but there is risk of drowning wire, so it is better to make a micro-reservoir. Then, you need to magnetize the wire. Take a dry leaf, a piece of bark. Need to put a leaf on the water surface, and the leaf wire. The magnetized wire under the influence of the magnetic field reverses and stops at the north-south line.

 

 

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