I heard that Michelangelo tested the authenticity of the emperor's crown with water! Can you talk about it?
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I heard that Michelangelo tested the authenticity of the emperor's crown with water! Can you talk about it?
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Only a few metal density exceeds gold, and the density of pure 24k gold is about 19.3 grams/ml, which is much higher than other metals. The density test method is enough to prove that your product is gold. The higher the density, the higher the purity of gold.
The specific test method:
1. Put the golden products into the container full of water,
2, and then test the volume of the overflowing water,
3. The weight of the product you call is the density of your golden products.
Please keep in mind that different gold purity has different grams/ml ratio: 14k- 12.9 ~ 14.6 grams/ml 18K gold-15.2 to 15.9 grams/ml 18k platinum-14.7 ~ 16.9 grams/ml 22k-17.7 Essence
Micorla Langqiluo uses water to test the true and false stories of the crown:
Legend that the ancient Greek king wanted to make a pure gold crown that was exactly the same as Terr's crown, so he summoned a brilliant jewelry to go to He explained his will and made him call away.
After a period of time, the jewelry craftsman handed over the crown as scheduled. The appearance was brilliant, and it was indeed the same as the Crown of Tel, and the weight was just like the gold that was taken away. According to his original promise, the king gave the jewelry award.
but the behavior of that jewelry is like a liar. Will the gold that will be taken from steal it and mixes other metals? Facing this golden crown, the king's heart suddenly became cold! But how can you determine whether the crown is melted? How can such a beautiful crown be willing to melt again? The king was wrapped around this difficult doubt day and night, and was restless, and finally couldn't afford to get sick.
Finally, he summoned Archimedes. Archimede was the most famous wise at the time. The king gave this problem to him: whether the crown must be made in pure gold, but it is not allowed to damage the crown. Archimedic thought of meditation and tried all the ways I thought of, but still could not reveal the secrets of the crown.
Wh he forgot to eat, sleep, forgot to take a bath, cure the disease, fascinated, and even thought about it: "Crown ... King ... Jewelry ... Gold ..." In the future, Archimedes kickled, and his wife drove him into the bathroom.
Is when Archimedes immersed in the water, suddenly felt that his weight was reduced. As long as he gently worked hard, his body could float ... At this time, his head was still the crown ... king ... jewelry craftsman ... Gold ... Silver ... The body sinks down for a while, floating on the water level in the bathtub for a while, and fell for a while ...
Akimide turned over and jumped, shouting: "There is a way, there is a way!" Wearing, running straight towards the palace, leaving a wet footprint on the road ... The lady was so anxious this time, murdering "It's crazy, it's crazy", and then chased out. The people on the street did not know what happened, and they followed behind.
turns out that Archimede has found a way to solve the crown problem from the bathtub: the same substances of the same quality are soaked in the water, and the volume of the overflowing water should be the same. If the crown is placed in the water, the volume of the overflowing water should be the same as the volume of the gold block of the same quality, otherwise the crown will definitely be mixed with fake.
Akimid immediately found a pot of water after running to the palace, and found a piece of gold of the same weight, a piece of silver, soaked in the basin twice, and the silver overflowed was almost more than the gold overflowing. Double, and then he soaked the crown and gold blocks into the basin. The crown overflowed more than the gold block. Obviously, the quality of the crown was not equal to the quality of the gold block. The crown must be fake.
In the face of the facts of the iron, the golden craftsman had to bow his head to admit that the crown was indeed mixed with silver. The annoying crown's mystery finally unlocked. According to the body of the body in the bathtub, Archimid took a water level to rise and fall. He took a container full of water and put the crown into the water. The water in the container must overflow. He collected the overflowing water in another container.
It, he put a piece of pure gold that heavily heavier as the crown, and put it in the container full of water, and then collected the overflowing water. If the crown is made of pure gold, then there should be more water overflowing water, but the water discharged from the crown is different from the water discharged from pure gold, which shows that the crown is mixed with different materials from the proportion and pure gold, so as to determine The golden crown was mixed with fake.
Akimid finally solved the problem. The cunning golden craftsman was punished.
In order to distinguish the authenticity of the crown, only from the density comparison, to obtain density, you must know the quality and volume, the quality is good, mainly to measure the volume. In the container filled with water, the crown is placed in the container, and the volume of the overflowing water is the volume of the crown.
The expansion information
The authenticity method of gold and falseness:
1, electronic gold meter identification
High -precision instruments such as silver and other precious metals are often divided into density measures and fluorescent spectrum tests.
The density measurement instrument is to use the principle of Archimedes to judge whether the density of the unknown metal material is consistent with the fixed density of the natural metal metal, thereby initially judging the type of unknown metal.
. The fluorescent spectrum testing of the golden instrument is also known as XRF. The analysis method of the device is an X -ray detector with a certain energy resolution. The energy of the X -ray is proportional to the energy size and strength of the output signal of the detector using the energy spectrometer to quantitatively analyzes the sample and qualitative analysis.
2. The testing method
The test goldstone comparison method is to use the determined gold medal and the sample test sample to grind the lane on the test gold stone. By comparing the color left by the grinding road, the color of the sample can be determined.
3, heating method
Pure gold -light, golden
alloy -Yuguang, black
platinum — keep white
white K gold —— Gray or black oxides
, but there are prerequisites, burning with flames of more than 1000 degrees, burning with your gas stove, real gold will also be black.
4, nitric acid test method
nitrate testing is a good way to distinguish the authenticity of gold. However, because the nitric acid used in this test is not easy to obtain, and it is also dangerous to do such a test at home. If you use this method to identify it, you should pay attention to safety!
1. Put the goldware into a small stainless steel container.
2, drop a drop of nitric acid on the golden device, observe the reaction.
If the sour is green, then this golden device is either made of ordinary metals or gold -plated.
If the acidity of the acid is golden, then it is gold -plated copper.
If off the acidity of milk, it is gold -plated silver.
If there is no reaction to the drop of acid, then this golden device is true.
5, scraping porcelain plate
1, find an unbuused porcelain plate. If not, you can buy a porcelain at the store.
2, scrape porcelain plate with gold. If a black scratch is left on the porcelain plate, your gold ware is not real gold. If the scratch is golden, it is true gold.
6, magnet attraction
Gold is not a magnetic metal, but iron, cobalt, and nickel can be attracted by magnets. If there are three metals mixed in gold, it can indeed be attracted by magnets. But unspeakable does not mean that it is pure gold. Because it may contain other metals (metals that are not attracted by magnets), or there are too few iron cobalt nickel mixed insi
de.
The conclusion: It is not necessarily pure gold that cannot be sucking, and it must be fake.
Reference materials Source: Baidu Encyclopedia-Gold
Use water to judge the authenticity of gold:
1. Put the golden products into the container full of water.
2, and then test the volume of overflowing water.
3. In the end, the weight of the product is the density of gold products.
Please keep in mind that different gold purity has different proportions: 14K is 12.9 to 14.6 grams/ml, and 18K gold is 15.2 to 15.9 grams/ml 18K platinum is 14.7 ~ 16.9 grams/ml.
Thimide Test Crown Crown True and False Story:
It said that in one time, Hyelian II created a golden crown. However, he always suspected that the golden craftsman stole his gold and mixed with silver in the crown. Therefore, he invited Archimedes to identify that the condition was not allowed to damage the crown.
At that time, people did not know that different substances had different proportion. Archimedes thought hard for many days, and there was no good way.
This crown was placed in the pot full of water, and the overflowing water was measured, and the pure gold of the same weight was placed in the pot full of water, but the overflowing water was less than the overflowing.
So he concluded that the golden craftsman mixed with silver in the crown. As a result, he discovered the principle of buoyancy, and people call it Akimid today. It is Archimedes, not Michelangelo.
The expansion information:
The method of judging the authenticity of gold
1. Seeing color
according to the different gloss and color of the gold, you can generally distinguish the pure gold and K gold, True gold, fake gold. That is to say, gold is better, and the color is more than 95%. If it is a long time of gold jewelry, there is a saying that "gold will never change color".
2, 量 weight
D gold weight is about double the same volume of silver, lead, and tin. True gold has a feeling of falling on the hand, while copper or others only have a sense of heavyness without falling.
3, listening to the sound
When the golden jewelry with high color is hit or throw it hard, it makes a dull sound. The greater the elasticity, the more the rhyme, the more the elders, the worse the color. The fake golden voice was crispy and no dull, and there was a loud sound, and the jumping fell fiercely after landing.
4, folding hardness
has a high color gold, and traces can be left with large head needles or nails. More than 97%of the gold jewelry, after twirling two or three times, wrinkles appeared at the bend, also called fish scales.
The gold jewelry containing more impurities, disconnected two or three times. If it is made for raw gold, the curved is broken, and the section has obvious sand granules.
5. Burning with fire
This will be used to burn red with fire. After cooling, observe the color change. If the surface is still the original golden color, it is pure gold. If the color becomes darker or different degrees, it is not.
This is low in color, strong in color, all darkened, indicating that it is fake gold jewelry. It really does not change color when it comes to fire.
Reference information Source: Expert introduces the discrimination of gold adulteration tips, watch the color and listen to the sound-People's Daily
Pay content for time limit to check for freenAnswer Hello, I am glad to answer your questions. The method of testing the authenticity of gold with water is as follows: 1. First put the golden products in the container full of water. 2. Then test the volume of overflowing water. 3. In the end, the weight of the product is the density of gold products. Different golden degrees have different proportions: 14K is 12.9 to 14.6 grams/ml, 18K gold is 15.2 to 15.9 grams/ml, and 18K platinum is 14.7 to 16.9 grams/ml. It is inferred by this ratio, if the overflowing water exceeds this range, then it means fake gold.nAsk me here for a coin of alloynReplynnQuestion does not seem tonReplynnIf it is a full gold, it will definitely be marked with 999, or 24K and other signs.n4 morenBleak
Only a few metal density exceeds gold, and the density of pure 24k gold is about 19.3 grams/ml, which is much higher than other metals. The density test method is enough to prove that your product is gold. The higher the density, the higher the purity of gold.
The specific test method:
1. Put the golden products into the container full of water,
2, and then test the volume of the overflowing water,
3, in the end, remove what you call you what you call. The weight of the product is the density of your gold product.
Please keep in mind that different gold purity has different grams/ml ratio: 14k- 12.9 ~ 14.6 grams/ml 18K gold-15.2 to 15.9 grams/ml 18k platinum-14.7 ~ 16.9 grams/ml 22k-17.7 Essence Michelangelo uses water to test the true and false story of the crown:
The legendary king of ancient Greece wants to make a pure gold crown that is exactly the same as Terr's crown, and then summons a clever jewelry craftsman, explaining his will to his will And if you count it, let him call it gold.
After a period of time, the jewelry craftsman handed over the crown as scheduled. The appearance was brilliant, and it was indeed the same as the Crown of Tel, and the weight was just like the gold that was taken away. According to his original promise, the king gave the jewelry award.
but the behavior of that jewelry is like a liar. Will the gold that will be taken from steal it and mixes other metals? Facing this golden crown, the king's heart suddenly became cold! But how can you determine whether the crown is melted? How can such a beautiful crown be willing to melt again? The king was wrapped around this difficult doubt day and night, and was restless, and finally couldn't afford to get sick.
Finally, he summoned Archimedes. Archimede was the most famous wise at the time. The king gave this problem to him: whether the crown must be made in pure gold, but it is not allowed to damage the crown. Archimedic thought of meditation and tried all the ways I thought of, but still could not reveal the secrets of the crown.
Wh he forgot to eat, sleep, forgot to take a bath, cure the disease, fascinated, and even thought about it: "Crown ... King ... Jewelry ... Gold ..." In the future, Archimedes kickled, and his wife drove him into the bathroom.
Is when Archimedes immersed in the water, suddenly felt that his weight was reduced. As long as he gently worked hard, his body could float ... At this time, his head was still the crown ... king ... jewelry craftsman ... Gold ... Silver ... The body sinks down for a while, floating on the water level in the bathtub for a while, and fell for a while ...
Akimide turned over and jumped, shouting: "There is a way, there is a way!" Wearing, running straight towards the palace, leaving a wet footprint on the road ... The lady was so anxious this time, murdering "It's crazy, it's crazy", and then chased out. The people on the street did not know what happened, and they followed behind.
The king asked Archimedes to test. Initially, Archimede was also thoughtful and could not help. One day, he went to the bathhouse to take a bath. When he sat in the bathtub, he saw the water overflowing and felt that his body was dragged gently. He suddenly realized that the proportion of the golden crowns could be determined by determining the amount of solid drainage in water. He jumped out of the bathtub excitedly, and couldn't even run out of his clothes, shouting "Yurica! Urica!". (Fureka, meaning "I know").
. After further experiments, he came to the palace. He put the crown and the same weight of pure gold in the two pots full of water. There are more water overflowing in the pot than another pot. This shows that the volume of the crown is larger than the volume of the same weight, so it proves that the crown is mixed with other metals.
The significance of this experiment is far greater than the founding of the golden craftsmen deceived the king. Archimedes found the law of buoyancy: the buoyancy obtained by the object in the liquid is equivalent to the weight of the liquid excreted by him. Until modern times, people are still using this principle to calculate the proportion of objects and measure the weight of ship's load.