Almost all the precious metal - silver
Everyone is very familiar with the monetary properties of gold, in thousands of years of human history to play a recognized role in the currency, but we may have thought of silver as the role of the role of the currency, but more than gold gold standard , In fact, in our modern history is to play when the currency is the protagonist of the money is silver, you see the ancient silver tickets, modern banks these words to know that silver and money is equate, Cantonese is also when we There is no money, very poor, we will say that "no silver", that in the hearts of the Chinese nation, silver and money between the inseparable relationship.
In my mind, silver is the most versatile metal, precious metal industry is a small set, silver industrial use is very extensive, because the silver conductivity and heat transfer is the highest in all metals, silver is often used as Rockets, submarines, automation devices, computers, nuclear devices and communication systems require high sensitivity of the instrument components, even your phone also has silver it As silver is consumed in the industry is quite powerful, its stock is actually much less than gold, will gradually reduce it, and now the gold and silver ratio is still more than 70, silver is now cheap it, but also in the next ten Silver will be exhausted during the year.
In addition to industrial use, silver and medical use, silver ions and compounds for certain bacteria, algal viruses, and fungi show toxicity, is a good sterilization material, but the human body is almost completely harmless, so the doctor There are also many of the tools used in the operating room are silver, such as silver needles, silver thread stitched bone and knot hoof tissue, silver drainage tube, even the dentist also useful to silver it You have to see the costume drama, you will know in ancient times to the emperor to eat food is to use silver needle to test whether the food was poisoned, the western United States was developed, many people will bring milk across the desert, and they Most will be in the bottle to put a silver coin to prevent the milk broken, some visible silver in the sterilization of the function.
In addition, silver can also be used as a photosensitive material. Silver halide can be widely used in photographic film, medical X-ray photos, electron microscopy camera film and other places, and silver as the ladies of the use of jewelry I do not have to mention the more