2. Natural gas is the source of heat on the planet
The significance of this mineral is difficult to overestimate. Most natural gas fields are closely related to oil deposits. Gas is used as an inexpensive fuel for heating homes and businesses. The value of natural gas lies in the fact that it is an environmentally friendly fuel. The chemical industry uses natural gas to produce plastics, alcohol, rubber, and acid. Natural gas deposits can reach hundreds of billions of cubic meters.
Clay tale
There lived Hard Clay in the world, and no one was happy with her. It was dry, callous, and would rather crack than do any good to anyone.
Water came to the Solid Clay.
“You need to be gentler,” he says. Only then can you do good.
Water touched Clay and it immediately became softer. It was so softened by the Water that they even made a mug out of it.
“You and I will give people water together,” says Water. “In the meantime, I’m evaporating.”
“We’ll be together, but you’re disappearing?”
“Bye,” says Water. “To give people something to drink, the mug must be hard and waterproof.” And with me you will not become hard. Therefore - goodbye!
“You said you have to be gentle to do good.” And now you say: you need to be firm...
“That’s right,” said Water. “While you’re just Clay, you need to be soft so that something can be molded out of you.” And when it becomes a mug, then firmness is needed.
The water evaporated, and Clay thought.
It turns out that it is not so easy to do good. To do good on earth, you need to know well when to be soft and when to be hard.
6.Iron ores - the metallic heart of the Earth
They differ in iron content and chemical composition. Iron ore deposits are found in many countries around the world. Iron plays a significant role in the development of civilization. Iron ore is the main component for the production of cast iron. The following industries are in dire need of iron ore derivatives:
- metalworking and mechanical engineering;
- space and military industries;
- automotive and shipbuilding industries;
- light and food industries;
The leaders in iron ore production are Russia, China, and the USA.
In nature, it is found mainly in the form of nuggets (the largest was discovered in Australia and weighed about 70 kg). It also occurs in the form of placers. The main consumer of gold (after the jewelry industry) is the electronics industry (gold is widely used in microcircuits and various electronic components for computer technology). Gold is widely used in dentistry for the manufacture of dentures and crowns. Since gold practically does not oxidize and does not corrode, it is also used in the chemical industry. It is mined in South Africa, Australia, Russia, and Canada.
Aluminum fairy tale
There was a time when metals could not fly. They are too heavy, it is difficult for them to get off the ground
At that time, people on Earth did not yet know anything about Aluminum. Although he was already there and met at every step.
There are such invisible heroes who are not noticeable to anyone, Rock will not look at them carefully. And when they look, they see - and immediately they will thunder throughout the whole world.
This is how the metal Aluminum thundered in the last century.
But thundering, of course, is easier than flying. For flights, not only lightness, but also hardness is needed. Aluminum lacked hardness.
“Connect him with me,” suggested Copper. “With me, he will become hard in no time.”
- With you? But you yourself are soft!
- I’m the soft one, while I’m alone. I'm not like that when it comes to rafting. Remember Bronze, Brass...
Combined Copper with Aluminum. The result was Dural, a hard alloy. Both light and hard.
This is what airplanes were built from. And on these planes work was found for many metals that previously, before Aluminum, could not fly.
It is important that someone flies first. And everyone else will follow him.
1.Oil is the “black gold” of the Earth
It is not for nothing that it is called “black gold”, because with the development of the transport industry, the life of human society began to directly depend on its production and distribution. Scientists believe that oil is a product of the decomposition of organic residues. It consists of hydrocarbons. Not many people realize that oil is part of the most common and necessary things for us.
In addition to being the basis of fuel for most types of transport, it is widely used in medicine, perfumery and the chemical industry. For example, oil is used to produce polyethylene and various types of plastic. In medicine, oil is used to produce petroleum jelly and aspirin, which is essential in many cases. The most surprising use of oil for many of us is that it is involved in the production of chewing gum. Solar batteries, which are indispensable in the space industry, are also produced with the addition of petroleum. It is difficult to imagine the modern textile industry without the production of nylon, which is also made from oil. The largest oil deposits are located in Russia, Mexico, Libya, Algeria, USA, and Venezuela.
Copper tale
You can't tell by looking that Copper is that old. But they knew her back in the Stone Age - just as red and ruddy as she is now.
They didn't know any other metals. And they knew Copper. And they used it on the farm. Jugs were made from it. Bowls. Knives. This is in the Stone Age!
That’s why it ended, the Stone Age, because too much copper had accumulated in it. And when too much bronze accumulated in the Copper Age, the Copper Age ended and the Bronze Age began (although Bronze was the same Copper, only combined with Tin). And then, when too much iron accumulated in the Bronze Age, the Iron Age replaced the Bronze Age.
That's how it all went down.
I can’t even believe that so much time has passed, that the Copper Age has passed a long time ago...
Because Copper is now in mechanical engineering, which was not in the Copper Age, and in electrical engineering, which was not in the Copper Age... And in televisions, unknown to the Copper Age, and in airplanes, and in space rockets - Copper, Copper is everywhere...
So old, but she keeps up with everything.
