Where was gold first mined? Detailed answer

BIG ENCYCLOPEDIA FOR CHILDREN AND ADULTS
Free library / Directory / Big encyclopedia for children and adults

Where was gold first mined? Detailed answer

Big encyclopedia for children and adults

Directory / Big encyclopedia. Questions for quiz and self-education

Did you know?

Where was gold first mined?

Gold is such a rare and precious metal that you might think it has only recently been mined. Nothing like this! Gold is one of the oldest metals known to man.

We will never know when a person first found and processed it, since all history textbooks were written much later. But since gold occurs in a free state (meaning that it does not always contain natural impurities), it was one of the first metals known to man.

Traces of the first workings of gold were found in Egypt. The Egyptians began mining gold over 5000 years ago. We also have information that about 4500 years ago, the Assyrians conquered their neighbors in order to get their hands on gold.

The rulers of Greece and Rome also loved this precious metal. They plundered the countries they conquered and forced the slaves to work in the gold mines. As you can see, gold mining has been going on since time immemorial.

In the New World, gold has also probably been mined since ancient times. When the Spaniards landed in Mexico, they discovered huge deposits of this metal in the Aztec cities. In South America, in Peru, the Incas also mined gold hundreds of years before the white people came.

When gold was discovered anywhere, many adventurers rushed there in search of the yellow metal. In 1848, a man named John Sutter was building a watermill in California. His assistant, James Marshall, noticed strange yellow sparks among the rocks at the bottom of the stream. These small yellow particles turned out to be gold.

News of the find quickly spread, and the famous gold rush of 48 began. A large number of settlers who came to California in 1849 marked the beginning of the development of the Pacific coast in America.

Author: Likum A.

Random interesting fact from the Great Encyclopedia:

Why is the ocean, which gives a lot of storms and tsunamis, called the Pacific?

The first European to see the eastern Pacific Ocean was the Spanish explorer Vasco Nunez de Balboa after he crossed the Isthmus of Panama. True, he did not suspect that there was a whole ocean in front of him, and he called it the South Sea. The familiar name to us was given to it by Magellan, who sailed along it during the planned round-the-world trip and did not encounter a single storm. In fact, the Pacific Ocean is often the source of tropical storms and tsunamis that destroy cities and claim lives.

Test your knowledge! Did you know...

▪ Since when have handkerchiefs been used?

▪ When was the key first made?

▪ Is the discovery of the theory of gravity by Newton connected with the fall of an apple?

See other articles Section Big encyclopedia. Questions for quiz and self-education.

Read and write useful comments on this article.

<< Back

Latest news of science and technology, new electronics:

Machine for thinning flowers in gardens 02.05.2024

In modern agriculture, technological progress is developing aimed at increasing the efficiency of plant care processes. The innovative Florix flower thinning machine was presented in Italy, designed to optimize the harvesting stage. This tool is equipped with mobile arms, allowing it to be easily adapted to the needs of the garden. The operator can adjust the speed of the thin wires by controlling them from the tractor cab using a joystick. This approach significantly increases the efficiency of the flower thinning process, providing the possibility of individual adjustment to the specific conditions of the garden, as well as the variety and type of fruit grown in it. After testing the Florix machine for two years on various types of fruit, the results were very encouraging. Farmers such as Filiberto Montanari, who has used a Florix machine for several years, have reported a significant reduction in the time and labor required to thin flowers. ... >>

Advanced Infrared Microscope 02.05.2024

Microscopes play an important role in scientific research, allowing scientists to delve into structures and processes invisible to the eye. However, various microscopy methods have their limitations, and among them was the limitation of resolution when using the infrared range. But the latest achievements of Japanese researchers from the University of Tokyo open up new prospects for studying the microworld. Scientists from the University of Tokyo have unveiled a new microscope that will revolutionize the capabilities of infrared microscopy. This advanced instrument allows you to see the internal structures of living bacteria with amazing clarity on the nanometer scale. Typically, mid-infrared microscopes are limited by low resolution, but the latest development from Japanese researchers overcomes these limitations. According to scientists, the developed microscope allows creating images with a resolution of up to 120 nanometers, which is 30 times higher than the resolution of traditional microscopes. ... >>

Air trap for insects 01.05.2024

Agriculture is one of the key sectors of the economy, and pest control is an integral part of this process. A team of scientists from the Indian Council of Agricultural Research-Central Potato Research Institute (ICAR-CPRI), Shimla, has come up with an innovative solution to this problem - a wind-powered insect air trap. This device addresses the shortcomings of traditional pest control methods by providing real-time insect population data. The trap is powered entirely by wind energy, making it an environmentally friendly solution that requires no power. Its unique design allows monitoring of both harmful and beneficial insects, providing a complete overview of the population in any agricultural area. “By assessing target pests at the right time, we can take necessary measures to control both pests and diseases,” says Kapil ... >>

Random news from the Archive

23" Full HD Philips display with ErgoSensor technology 12.11.2012

Royal Philips Electronics has added the widescreen 23P231QRYES 4PXNUMXQRYES IPS panel with white LED backlight to its Brilliance family of monitors.

The novelty is remarkable in that it is endowed with ErgoSensor technology, which, according to the developers, is designed not only to significantly reduce the power consumption of the device, but also to monitor the health of its owner. So, the display automatically turns off whenever there is no one in front of it. In addition, during operation, it gives the user recommendations on the optimal position of the head and the most acceptable distance to the screen for the eyes, and also periodically reminds the need to take a short break to rest.

The product features Full HD resolution of 1920 x 1080 pixels, 7ms response time (GTG), 1000:1 contrast ratio (20000000:1 SmartContrast) and 178-degree viewing angle in both planes. It is equipped with two built-in speakers with a power of 1,5 W each, a built-in four-port USB hub, as well as D-Sub, DVI and DisplayPort interfaces. The package includes a height-adjustable stand that allows you to rotate the screen, put it in portrait display mode and change the angle of inclination.

For the European market, the recommended retail price for the product described above is set at 250 euros.

Other interesting news:

▪ Digital camera the size of a credit card

▪ Xiaomi Lady Bei Portable Face Skin Humidifier

▪ Waterblock EK-Quantum Velocity2

▪ Preservation of the properties of transparent electrodes when heated

▪ New ISOCELL sensors from Samsung

News feed of science and technology, new electronics

Interesting materials of the Free Technical Library:

▪ section of the site Dosimeters. Selection of articles

▪ article Crown of thorns (wreath). Popular expression

▪ article Which languages don't distinguish between blue and green? Detailed answer

▪ article Volcano Krakatoa. Nature miracle

▪ article Signaling device on the K157XA2 chip. Encyclopedia of radio electronics and electrical engineering

▪ article Electronic volume and tone control on the K174XA54 chip. Encyclopedia of radio electronics and electrical engineering

Leave your comment on this article:

All languages of this page

Home page | Library | Articles | Website map | Site Reviews