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.
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.
On the topic: methodological developments, presentations and notes
Presentation for the thematic lesson “Visiting Music”
Presentation for a thematic lesson on music in kindergarten for a pre-school group...
presentation for the lesson “The path of bread to our table”
presentation for the lesson “The path of bread to our table” as part of a project activity on the topic “bread”...
There are many minerals that are mined from the depths of the Earth. All of them are extremely important because they allow you to get the things you need for a comfortable life. They make it possible to heat homes, eat, move through space at high speed, make wonderful decorations, and much more. During research, scientists discover very interesting facts about minerals, which allow us to learn more about the secrets hidden in the underground depths.
