How do I make a simple compass? What to pay attention to when making

Make your own compass Materials: needle, candle, wire, cold water, transparent plastic bottle, iron awl, thin wooden stick Method: 1 Wrap the sewing needle with wire, then put it in the fire to burn red, and then put it in cold water to cool immediately.

You have to remember that when dipping, you must make the needle in a north-south direction, so that the needle can become a small magnetic needle. Also, you have to be careful, don't get hot! 2. Cut off the mouth of the plastic bottle, pierce a hole in the bottom ** with an iron cone, and then tie one end of the thin wire to the middle of the small magnetic needle, and then pass the wire through the hole.

Invert the plastic bottle so that the small magnetic needle hangs in the middle of the bottle. Make the small magnetic needle slowly still, at this time you will find that one end of the small magnetic needle points to the south, and the other end refers to the north The watch does the compass and the watch goes direction-finding. "The hour is half a pair of suns, and 12 refers to the north".

It is generally possible to quickly discern the direction between 9 a.m. and 4 p.m., pointing half the time in the direction of the sun, and 12 o'clock is north. For example, if the time of 14 40 in the afternoon, half of which is 7 20, and the time is directed towards the sun, then 12 refers to the north.

The first thing to do is to find a magnet. This can be removed from discarded items, such as the horns of discarded radios and audio equipment, motors for shavers, electric toys, magnetic sheets in magnetic stationery boxes, magnetic insoles, etc.

Prepare another rice bowl and a tiny sewing needle.

Look at your magnets, modern magnets have all kinds of shapes: square, garden, arc, fan, ring, cylindrical...

Use a needle to see where the magnet has the strongest suction, and that is the magnetic pole.

Rub the needle from the tip of the needle several times with a magnetic pole, being careful not to rub it back and forth, and the sewing needle will become a magnetic needle.

Place a bowl of water on the table. Gently place the needle flat on the surface of the water and the needle will not sink. This is the "surface tension" of water.

At this point, you will see the magnetic needle start to rotate until one end of the guide and the other end of the needle point north.

Try turning the bowl, no matter how you turn it, the needle will always point north and south.

1. The following materials need to be prepared: embroidery needles, a bowl of water, magnets, pens, and paper.

2. Cut the paper into a rectangle with scissors and rub the magnet back and forth on the embroidery needle several times.

3. Insert the finger dust rubbed needle into the cut paper, and write the north and south with a pen on the paper. Place the paper in a bowl filled with water, such a compass for discernment.

That's it. Silly and cautious.

Preparation tools Ingredients: embroidery needle, water, bowl or cup, magnet, pen.

Steps. 1. Get ready to make a simple compass.

Materials and tools to be used. See the image below:

Steps. 2. Rub the magnet back and forth on the embroidery needle several times. See the image below:

Grinding in the middle of a step. 3. After rubbing, insert the needle into the cut paper. See the picture below to sell the bucket shows:

Steps. 4. Write the direction of north and south on a piece of paper. See the image below:

Steps. 5. Put the paper in the bowl filled with water, and the compass is made here. See the image below:

Preparation tools Ingredients: embroidery needle, water, bowl or cup, magnet, pen.

Steps. 1. Prepare the materials and tools you need to make a simple compass. See the image below:

Steps. 2. Rub the magnet back and forth on the embroidery needle several times. See the image below:

Steps. 3. Insert the needle into the cut paper after rubbing. See the image below:

Steps. 4. Write the direction of north and south on a piece of paper. See the image below:

Steps. 5. Put the paper in the bowl filled with water, and the compass is made here. See the image below:

How to make a simple compass.

Tools required: embroidery needle, water, bowl, magnet, pen.

1. First of all, prepare the required tool materials, as shown in the figure below:

2. Rub the magnet back and forth on the embroidery needle several times, as shown in the figure below

3. After rubbing, insert the needle into the cut paper, as shown in the following figure

4. Then write the north-south direction on the paper, as shown in the figure below

5. Finally, put the paper into the bowl filled with water, as shown in the figure below

Here's how to make a simple compass:

1. With pliers, straighten an ordinary stationery paper clip and cut it to the appropriate length.

2. Place the straightened paper clip on one pole of the magnet and rub it in the same direction more than 20 times, being careful not to let the tip of the needle stick in your hands. One of the easiest ways to check if a magnetic needle is good is to place it next to another finished compass and check that the compass needle is not deflected due to the proximity of the magnetic needle.

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

4. Glue the pointer to the cap, and a simple version of the floating compass is ready.

To use this DIY compass, simply place it on the still water surface, attracted by the Earth's magnetic poles, and the compass will slowly rotate on the water surface until it points you in the correct north-south direction.

Compass Introduction:

The compass, called Sinan in ancient times, is mainly composed of a magnetic needle mounted on the shaft, the magnetic needle can rotate freely under the action of the natural geomagnetic field and remain in the tangent direction of the magnetic meridian, the south pole of the magnetic needle points to the geographical south pole (magnetic field North Pole), using this characteristic to discern the direction.

It is commonly used in navigation, geodesy, travel and military applications.

There are three types of components for the compass that physically indicates the direction, namely the Sinan, the compass and the magnetic needle, all of which belong to Chinese inventions. According to the records of the "Ancient Mine Record", it first appeared in the Cishan area during the Warring States Period.

The compass is the result of the understanding of magnetism by the ancient Chinese working people in long-term practice.

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

2. Floating compass: Take a magnetized steel needle, pass it horizontally through a small cork, and put it in a ceramic bowl containing water, which is a floating compass.

3. We can also do a simpler direction identification: The way to determine the direction of the watch is very simple, divide the time you are in by 2, and then find the corresponding position of the quotient on the dial, and then point this number at the sun, and the direction pointed by the "12" point on the dial is north. For example, at 10 a.m., divide by 2, the quotient is 5.

Align the "5" on the dial with the sun, and the "12" will be north. Keep in mind, however, that if it's in the afternoon, it should be counted as a 24-hour timepiece, and if it's 4 p.m., it's 16 p.m. Once the north is determined, the other directions are clear at a glance, and this method is no less accurate than the compass.