Mini compass – a novelty item for your life
Everyone knows a compass is used for navigation. It can easily point the North direction because of the magnetism feature. You can simply put it in your outdoor pack tin to make a perfect survival kit. When you get lost in the wild, a compass is a powerful and useful tool to point you to the right direction to save your time and life. Therefore, a compass is a mandatory tool in your outdoor survival kit.
You may not know there are some other interesting use for these small compasses. Lets see some you photos and you get clear.
History of the Chinese compass
Compass is a simple instrument used to point the position. Compass was formerly one of the four great inventions of ancient China. It is a major component mounted on the shaft can freely rotate the needle. Needle in the ground magnetic field can be maintained in the tangent direction of the magnetic meridian. Needle points to geographic North Pole, the direction can be identified using this performance. Compass is widely used in navigation, geodesy, travel and military fields.
China is the universally accepted country who invented the compass. The invention of the compass of our working people in long-term practice of understanding the results of magnetic objects. As the production of labor, people contact the magnetite, and began to understand the nature of the magnetic. People first discovered the nature of the magnet to attract iron, and later discovered the point of the magnet. After many experiments and research, and finally invented a practical compass. The first magnet compass is made of natural, which shows that the Han Chinese working people have long found a natural magnet and the absorption of iron. According to ancient records, far away in the Spring and Autumn Period, as is in the slave society to feudal society, the transition period of great change, productivity has been greatly developed, especially the rise of agricultural production is developed, which has prompted the mining, smelting development of the industry. Production in long-term practice, people know the magnet from the iron ore.
7th century BC, a book of the "tube to a few" on the record: "There is a magnet who, under the copper-gold." Meaning that if the mountain there is a magnet, the mountains on the possession of iron ore. Geographic classic "Shan Hai Jing", also recorded "more than a magnet problem filling the mountains." "Waterways" in the state of Qin Metrical recorded in front of the door with a magnet made of anti-avoidance was the palace Mouci assassination, such as Phi bad dark armor, weapons hidden palace, the door will be sucked and was found, This shows that people have long found that the absorption of iron of the magnet, and make use of.
Production in long-term struggle, our working people the means to further the use of magnet polarity, the direction of the machine made, this is the compass. This is "a degree of Han Feizi articles" and in "An Exposition", a book has a record. In "An Exposition" in the records, said Zheng into the mountain forests to collect jade in time, in order not to lose direction, with "Ian." This "Ian" is the compass of this machinery. Han Wang in "On balance" described in the "Ian", it is only water as a spoon,
Polished surface with a natural magnet into, spoon at the end of the spherical body, oval-shaped spoon, spoon handle whole body gradually shrunk to columnar. In order to determine the direction, comes with a "site", it is copper or painted wood plate, the central groove is smooth and round, inside round shape may be foreign, box depicts the orientation of the scale, with "dry" "branch" (ie A, B, C, D ... and the child, the ugly, Yin, Mao ...) as well as gossip, suggests that twenty-four position. Will vote at the central site, its shank will generally stop position on guide. Above we can see that Ian is a modern compass (magnetic compass) of the body. "Guide" is Zhang Heng in the "Tokyo Fu," first put forward in the future through the Wei, Jin and Southern and Northern Dynasties, Sui, Tang, Song after a thousand years until gradually developing. Distinguished scientist Shen Kuo in the Song Dynasty, "Meng Xi Bi Tan", the current status of development of the compass, made a detailed exposition. At that time in the production and promotion of the development of scientific experiments, especially the maritime industry and the rise of foreign trade expansion, the compass gradually developed. Shen Kuo summarizes the practice in the creation of working people in the four compass device method. The first is the water float, float on the water for the needle guide, although relatively stable, but is easy to volatility; The second is the spin titration nail, the nail will be placed on the needle, rotating flexible and easy to fall; third rotating bowl lip is fixed, the edge of the needle place-sized, rotating more flexible, but easy to fall; The fourth method is to spin thread, needle with silk to hang up, flexible and stable rotation can be achieved. He also recorded the method of artificial magnetic granted that the "magnet grinding front, you can guide." This is made with artificial magnets, is a huge step forward. In addition, the system had also been out "guide to fish", "dry needle", "water needle." Dry needles, water, two compass needles, a modern compass (compass) of the basic structural principle of the foundation. Shen Kuo compass in the study process, summarize, and also have found magnetic declination exist. In other words, the compass indicates the direction, "Ordinary Differential east, the south is also incomplete." This is our country made great contributions to geomagnetism.
Nowadays, the technology is developing fast and improved a lot. We have manufactured modern compasses to help and to bring fun to people's outdoor life. If you need to purchase compasses, do not forget to buy from China at very good price.
What kind of button compass is the best for direction
When you're looking for a compass, you'll likely to choose a cheap and useful compass. A button compass is just the right choice for you. It is not expensive, but can point direction for you.
There are two types of button compasses. One is oil filled compass. The oil filled magnetic compass is very beautiful and has a better plump looking. The top case of this compass is transparent. The oil inside are used to eliminate static electricity so that the compass will have more precise direction. The dry compass is a little more compulicated to produce. We need to paint anti-static after we finish the installation. 99% percent of our customers are using oil filled compass for diameter size below 35mm.
You see there is a groove at the compass edge. This is designed for installtion on other products such as toys, walking sticks, whistles, etc. If you order 1000pcs, we can change the inside plate design to your custom design.
How to make a custom compass
Maybe you're interested in making a custom compass for promotion or in your own brand. Surely we can make it for you. Firstly you can send us the picture or design artwork (such as AI, CorelDraw file) to us and tell us your ideas. Then we will make a sample according to your request. We can put your logo or background image on the compass plate. We can also customize the whole compass plate color, dial, and background for you.
Generally we offer two colors imprint for a custom compass. And if you order more than 2000pcs per model, it's free for customize. But if you want to print your logo on back case, there is a small extra cost about 0.035$. It won't take a long time. Normally we can finish the first sample in 5days and send you goods in a week.
We show you an example of custom compass as below.
