Posted on Mar 16, 2021 187
Precious gold has long been a measure of value and wealth in many cultures. It is sometimes called the blood metal because it has been responsible for more crimes than any other, although of course gold itself is not to blame. Because of its rarity and industrial demand, it is still needed by many industries to this day, and therefore its prices never fall.
Facts about gold
- Experiments have successfully proven that it is possible to turn mercury into gold. However, this procedure is so expensive that it is more economically feasible to produce this precious metal by any other method.
- In jewelry, they usually add nickel too gold to strengthen it. The gold itself is very soft, and the gold ingot can be scratched with your fingernail if you want to.
- In the United States, Alaska, anyone has the legal right to mine gold by washing gold-bearing sand in the rivers, even if they are not citizens.
- There are gold deposits on our planet on all continents.
- Gold is not corrosive, and it never rusts.
- About 10 percent of the world’s gold production is used for industry, while the rest is used for jewelry and gold bullion.
- The oldest pieces of gold jewelry discovered by archaeologists are around 6,000 years old.
- Every hour from the Earth’s bowels extracted and processed, more iron than gold was mined during the entire history of humanity.
- According to current estimates, there is about four times more gold in the Earth’s interior than has already been mined. And it is only those deposits that can be developed with the current level of development of metallurgy and other sciences.
- Since the beginning of the twentieth century has been mined three times more of this precious metal than in all history up to that point.
- Gold is quite edible. In ancient India it was added to some dishes for the nobility, and in modern New York, a restaurant serves fabulously priced ice cream with gold leafs added.
- The largest gold nugget ever mined reached a weight of 72 kg, and the prospector found it at a depth of only about 5 cm below the surface of the soil.
- A piece of gold weighing 30 grams can be made into a string over 80 kilometers long, thinner than a human hair.
- Gold cannot cause an allergic reaction. If it does, then it is a matter of another metal added to the gold alloy.
- The ancient Greeks believed that gold was made of water mixed with sunlight. But that was a long time ago, even before the development of the ancient Greek sciences.
- In ancient Egypt, gold was part of the body of Ra, the sun god, so only pharaohs and their families could wear gold jewelry.
- About 25% of the world’s gold reserves in bullion form are in New York City, in the vault of the Federal Reserve Bank.
- About 500 tons of gold are mined each year in African mines. To do this, about 700,000,000 tons of soil have to be lifted to the surface and processed. The mines are up to 3.5 kilometers deep and the temperature is about +55 degrees.
- Perfectly cleaned of all impurities, the gold is so soft that it can be easily kneaded by hand like dough.
- Scientists estimate that there is more gold on the asteroid called Eros than on Earth.
- American astronauts used gold foil to protect them from solar radiation when they landed on the moon. The take-off and landing module was covered with it.
- Scientists believe that about 10 billion tons of gold is contained in the waters of the ocean and on the ocean floor, but the methods that would make it possible and economically viable to mine under such conditions do not yet exist.
- The body of the average adult contains about 0.2 mg of gold.
- This metal is an excellent conductor of both heat and electricity.