Natural Phenomena Expository Essay Reading 5

You're going to take an exam... It's good to have a book to hand over to "The Fisherman Reads".

1. Einstein once fell off the chair, regardless of the pain of his body, and was still thinking about why he fell straight from the chair, so as to conclude that objects always move in the direction of least resistance, which inspired him to study the "general theory of relativity".

2. When Watt was a child, he had doubts about the beating of the lid of the kettle when the water was boiled, so he realized the powerful power of water vapor, and later successfully invented the steam engine after years of research.

3. Human beings were inspired by birds and fish to invent airplanes and ships, and the streamlined shape of the fish body gave people a great inspiration, so the external shape of the ship was also streamlined, which can well reduce the resistance of the water, and the fish can float up mainly because it has a swim bladder, and the boat can float on the surface of the water is also modeled on the principle of the swim bladder, and a lot of watertight cabins are made under the boat to ensure the buoyancy of the ship.

In addition, the rudder of the boat is also designed according to the principle of controlling the direction of the tail fin of the fish, and now there are also stabilizer fins on both sides of the boat, which are also modeled after the fins on both sides of the fish's body.

4. Young Isaac Newton was sitting in his garden when an apple fell and hit him on the head, and he suddenly came up with the law of gravitation. We can use Newton's discovery of the law of gravitation to show that the laws of nature are objective.

5. Division Drivesk used Watt's steam engine to build the world's first steam locomotive with a speed of 5 to 6 kilometers per hour. Because coal or firewood was used as fuel at that time, people called it the "Shengmin Train", and it has been used ever since."

6. The Wright brothers often lie on the ground with their backs facing the sky, carefully observing the flight of eagles in the air for hours on end, studying and pondering the mechanisms by which they take off, rise and fall, and circle. Airplanes were invented based on the flight of birds.

7. There are more than 2,000 kinds of Edison's inventions, such as printing presses, phonographs, telegraphs, etc., and all countries in the world pay tribute to Edison's great contributions to mankind. They called Edison "the king of invention", "the leader who opened the electric age", "the pioneer of the modern research institute", "the Napoleon of science", and "the most useful man in the world".

I think this point of view can write about a situation in which human beings have transformed nature.

First, Einstein once fell off his chair, despite the pain in his body, and was still thinking about why he fell straight from the chair, so as to conclude that objects always move in the direction of least resistance, which inspired him to study the "general theory of relativity".

As a child, Watt had doubts about the beating of the lid of a kettle when water was boiled, so he realized the power of water vapor, and after years of research, he succeeded in inventing the steam engine.

Mirage.

A mirage is an optical phenomenon produced by the continuous refraction and total reflection of light in air with an uneven refractive index under clear, windless or breezy conditions. Due to the uneven change of the refractive index of the air, the deformation of the object, and the disturbance of the breeze, the fairyland dissipated, which made it even more mysterious.

The air near the surface of the sea has a higher refractive index due to the lower sea temperature and moist water vapor, while the air above is warmer due to the sunshine temperature. In other words, the refractive index of the air layer above the sea surface decreases gradually with altitude from the bottom to the top. As light passes through this layer of air, it bends downward through continuous refraction.

The distant view of the sea is hidden below the horizon and cannot be seen directly. When the light rays of these scenes into the air continue to bend to the ground and reach the human eye, people will look against the light, and they will see that there is a strange scene above the sea that has never been seen before, like a fairy pavilion volley.

With this beautiful music, I, Little Snowflake, have met you. I live in a large family with nature, and it's hard to explain the strange things in the house, but some of them are still very interesting. Take water vapor, for example.

Every year he and his partners go on a trip. When they go to a place where the temperature is below 0, they can't stand it, and everyone desperately squeezes together to get "warm", and this squeeze doesn't matter, but it can no longer be separated, and it forms me, a little snowflake. My friends and I were flying and playing in the air, not to mention how happy.

But at this moment, a little boy of seven or eight years old caught me with his sleeve, I was so angry, but I had no choice but to watch other friends travel far away. "Hey! Come and see, the little snowflakes are hexagonal.

He hurriedly called out to the other children. As soon as I heard it, I was amused: "What's all the fuss about, our little snowflake is hexagonal."

Why is that? The little boy was talking to himself and scratching his head. Looking at his serious appearance, half of my anger just now disappeared, and I said loudly:

Let me tell you! Actually, my basic tissue is ice embryos, and each ice embryo is made up of 5 water molecules. Four of the water molecules are located at the top corner of a tetrahedron, and one is located in the center of the tetrahedron, and many ice embryos are connected to each other to form ice crystals, and many ice crystals are combined to form I.

So the reason why I'm hexagonal has something to do with how water molecules combine to form ice crystals. The combination of the top and bottom of the ice embryo can only make me fatter, but the combination of the ice embryo in a flat row can make the water molecules combine layer by layer, making me longer. I grew up in this left and right layer.

The combination of hexagons alone must form a very symmetrical me, and I will run and jump when I am floating in the air, and I will not run and jump around my symmetry point, so as to ensure that I always maintain a hexagonal shape and not 'hunchback' in the process of growing up. As for the variety of hexagons, it is related to the different temperature and humidity conditions of the atmosphere when the partners are flying in the air. "That's how I was structured and formed.

How's that, it's fun! Ha ......"My eyelids are fighting again, and I'm a little tired after saying that I've been sleeping for a while, so I don't mind if I sleep for a while! When you see a crystal drop on my sleeve, it means that I am asleep, but don't wake me up, let's see you another day, bye!