Where does iron come from to make steel? Detailed answer

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

Where does iron come from to make steel? Detailed answer

Big encyclopedia for children and adults

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

Did you know?

Where does iron come from to make steel?

Steel is an alloy of iron and carbon. Other substances can be added to give the steel various characteristics: strength, resilience, elasticity. But the main material for steel production is iron. Iron is not usually found in nature in its pure form. Most of it is mined in a mixture with other substances in the composition of iron ore.

The Great Lakes region of the United States contains the main source of US iron ore and one of the world's largest deposits. Of the European deposits, Lorraine is the most famous on the border of France and Germany. The ores found in the Great Lakes region contain about 51 percent iron. And they are close to the surface. It is very simple to extract them: you just need to remove the top layer of the earth and dig the ore. But, unfortunately, these stocks are decreasing.

The iron ores that supply the largest amount of iron are magnetic iron ore, red, yellow and spar iron ore. Magnetic iron ore contains the largest amount of iron compared to others, sometimes up to 72 percent. This mineral is black in color, in which three parts of iron are combined with four parts of oxygen.

The largest deposits of magnetic iron ore are located in the Adirondack Mountains in the state of New York, in New Jersey and Pennsylvania. Magnetic iron ore is also mined in Sweden, Norway, Russia and Germany. Red iron ore is the most common type of iron-containing material, which has found the widest application in the industrial production of iron. It is a soft, free-flowing red ore.

Author: Likum A.

Random interesting fact from the Great Encyclopedia:

How did the face of an angry samurai appear on a crab shell?

In 1185, on the Inland Sea of Japan near the town of Dannoura (the coastal part of the present city of Shimonoseki), a decisive battle took place between the fleets of two samurai clans - Taira and Minamoto. The samurai of the Taira clan suffered a crushing defeat, most of them died in battle, and the rest preferred death in the depths of the sea to captivity.

Fishermen say that Taira samurai still roam the bottom of the sea, turning into crabs. Sometimes crabs are caught here, on the shell of which strange reliefs are found that resemble the face of an angry samurai. The appearance of the face of a warrior on the crab shell is considered by biologists to be the result of artificial selection, unconsciously produced by Japanese fishermen.

Perhaps by pure chance, among the distant ancestors of the crab, there was one on whose shell the outlines of a human face appeared, albeit vaguely. Even before the battle at Dannoura, fishermen, having caught the descendants of this crab, quite often superstitiously threw them into the sea, thus starting the evolutionary process. If you are a crab with an ordinary shell, people will eat you, and there will be fewer offspring in your hereditary line. If your shell bears the image of a human face, you will be thrown out, and you will leave behind more offspring.

The fate of crabs was made dependent on the pattern on the shell. Centuries passed, generations of crabs and fishermen were replaced, more and more crabs survived, whose shell pattern looked like the face of a samurai. Gradually, the drawing began to resemble not just a human face, and not even just the face of a Japanese, but the face of an angry warrior. In the end, there were a lot of such "samurai" crabs.

Test your knowledge! Did you know...

▪ What causes solar eclipses?

▪ What is the lowest temperature you've ever been able to get?

▪ Why do crocodiles cry when they eat meat?

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:

A New Way to Control and Manipulate Optical Signals 05.05.2024

The modern world of science and technology is developing rapidly, and every day new methods and technologies appear that open up new prospects for us in various fields. One such innovation is the development by German scientists of a new way to control optical signals, which could lead to significant progress in the field of photonics. Recent research has allowed German scientists to create a tunable waveplate inside a fused silica waveguide. This method, based on the use of a liquid crystal layer, allows one to effectively change the polarization of light passing through a waveguide. This technological breakthrough opens up new prospects for the development of compact and efficient photonic devices capable of processing large volumes of data. The electro-optical control of polarization provided by the new method could provide the basis for a new class of integrated photonic devices. This opens up great opportunities for ... >>

Primium Seneca keyboard 05.05.2024

Keyboards are an integral part of our daily computer work. However, one of the main problems that users face is noise, especially in the case of premium models. But with the new Seneca keyboard from Norbauer & Co, that may change. Seneca is not just a keyboard, it is the result of five years of development work to create the ideal device. Every aspect of this keyboard, from acoustic properties to mechanical characteristics, has been carefully considered and balanced. One of the key features of Seneca is its silent stabilizers, which solve the noise problem common to many keyboards. In addition, the keyboard supports various key widths, making it convenient for any user. Although Seneca is not yet available for purchase, it is scheduled for release in late summer. Norbauer & Co's Seneca represents new standards in keyboard design. Her ... >>

The world's tallest astronomical observatory opened 04.05.2024

Exploring space and its mysteries is a task that attracts the attention of astronomers from all over the world. In the fresh air of the high mountains, far from city light pollution, the stars and planets reveal their secrets with greater clarity. A new page is opening in the history of astronomy with the opening of the world's highest astronomical observatory - the Atacama Observatory of the University of Tokyo. The Atacama Observatory, located at an altitude of 5640 meters above sea level, opens up new opportunities for astronomers in the study of space. This site has become the highest location for a ground-based telescope, providing researchers with a unique tool for studying infrared waves in the Universe. Although the high altitude location provides clearer skies and less interference from the atmosphere, building an observatory on a high mountain poses enormous difficulties and challenges. However, despite the difficulties, the new observatory opens up broad research prospects for astronomers. ... >>

Random news from the Archive

AOC AGON PRO AG274QGM Gaming Monitor 13.01.2022

AOC has introduced a new gaming monitor AGON PRO AG274QGM, which features an ultra-high refresh rate of 300 Hz (GtG 1 ms) and support for proprietary NVIDIA Reflex technology.

The novelty is built on a 27-inch IPS-matrix with a resolution of QHD (2560 x 1440 pixels), which provides wide viewing angles, color accuracy and features NVIDIA's patented color calibration. The mini LED backlighting consists of 576 dimmable zones to deliver uncharacteristic IPS deep blacks, making the monitor VESA DisplayHDR 1000 certified.

Support for NVIDIA G-Sync ULTIMATE technology allows users to take advantage of variable refresh rates to eliminate lag and tearing. What's more, this means reduced input lag, even when playing highly realistic HDR images. The built-in G-Sync module synchronizes the images on the screen with the GPU. As a result, the AG274QGM provides gamers with a truly smooth gaming experience without ghosting.

Games using the NVIDIA Reflex API reduce input lag by dynamically synchronizing GeForce GPUs with the CPU, allowing gamers to detect targets faster, respond better, and aim more accurately. In addition, NVIDIA Reflex Analyzer can work in tandem with NVIDIA Reflex-supported monitors and input devices, allowing users to see exactly what their system's overall latency is and play with the knowledge that their computer is running at the lowest possible latency.

In addition, AG274QGM is supported by NVIDIA Reflex Analyzer. This module tracks game mouse clicks by measuring the time until a pixel change (such as a flash from a gun shot) on the screen. For greater flexibility in everyday use, the AG274QGM is equipped with four USB 3.2 ports, allowing users to directly connect peripherals such as a keyboard or mouse. At the same time, the USB port marked in green is intended for devices that support NVIDIA Reflex Analyzer.

Other interesting news:

▪ Stars that form gold are discovered

▪ Floating robot to explore a volcano after an eruption

▪ Electric liner for short flights

▪ Apple will change TV

▪ Hybrid offshore power plant

News feed of science and technology, new electronics

Interesting materials of the Free Technical Library:

▪ section of the site Signal limiters, compressors. Article selection

▪ article Pythagorean theorem. History and essence of scientific discovery

▪ article How did a chicken from England cause a panic about the imminent end of the world? Detailed answer

▪ Passionflower article. Legends, cultivation, methods of application

▪ article Antenna W3DZZ Tri-band dipole. Encyclopedia of radio electronics and electrical engineering

▪ article Moving match. Focus secret

Leave your comment on this article:

All languages of this page

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