How to make a simple guideline needle manual production method

1. How to do the compass

Tool materials: back -shaped needles, waste bottle caps, pliers, powerful magnets (can be disassembled from waste speakers), glue, scissors, signs.

Production steps:

1. Use pliers to pull a normal stationery back and cut it straight, cut off the appropriate length.

2. Place the pull -up needle on one pole of the magnet and rub more than 20 times along the same direction. Be careful, don't let the pinpoint tip start.The easiest way to check whether the magnetic needle is done well is to put it next to another finished compass to check whether the guideline pointer pointer is deflected because the magnetic needle is approaching.

3. Use a marker pen to blame one end of the magnetized pointer. Put 2 small holes on the side of the beverage bottle cap, and insert the magnetic pointer into the hole cover.

4. Use glue to stick the pointer on the bottle cap, and a simple version of the water -watering compass is ready.

When using this DIY compass, you only need to put it on the static water surface and be attracted by the Earth's magnetic pole. The compass will slowly turn the water on the water until you point you the right north and south direction.

Second, simple guideline needle handmade method

1. Take a sewing needle, magnetize it with a magnet, and then tie it to the middle of the needle with a cotton thread to hang it on a bracket to become a compass.

2. Floating compass: Take a magnetized steel needle, pass through a small cork in the horizontal direction, and place it in a ceramic bowl with water, which is a floating compass.

3. We can also make a simpler direction to distinguish: the method of determining the direction with a watch is very simple, divide the time you are in 2, then find the corresponding position of the quotient on the dial, and then align this number to accurate it.The direction of the "12" point on the dial is the north.For example, at 10 am, 2 in the morning, 2, and 5.Met the "5" on the dial at the sun, and the direction of "12" is the north.But remember that if in the afternoon, it should be calculated at 24 hours. If 4 pm, it should be calculated at 16 o'clock.Once the north is determined, other directions are clear at a glance. This method is no less than the accuracy of the compass.