Mysterious light

What is light, or what is light, is really unclear. I just think that this kind of thing is very strange and mysterious.

Talking about light naturally reminds me of many things in my childhood.

Remember, it was a cool summer night in the country, and the moon hid behind the mountain and refused to show up. A few fireflies flashed from time to time in the dark night sky, dotted and flickering, sometimes hidden and sometimes present. Looking at that situation, it seems that UFOs sent by alien spies are elusive and mysterious.

When I was a child, I was naive, lively and curious, and I was suddenly attracted by this shiny and obviously extinct elf. So, I called my friends, took a broom and a fishing net, jumped up and down, and caught fireflies one by one. First, play with it in your hand. When you are tired of playing, you throw it on the ground and step on it, showing a dense starlight, and then disappear. Then it suddenly occurred to me that I picked pumpkin stems from the pumpkin fields in front of and behind the house and stuffed fireflies into the pumpkin stems. In this way, it was made. What seems to be the earliest? Glow stick? . This kind? Firefly stick? , emitting a faint green light, faint, magical, very fun.

Little friends followed suit, and in a short time, everyone had one or several. Firefly stick? . We all couldn't put it down, danced with it, and had a good time, very happy. Sometimes yelling and playing games, and sometimes desperately singing the songs I learned at school, almost sang the whole silent mountain village. Mother said, you children are so happy that you lifted the whole village!

Suddenly, one evening, a large red cloud rose in the sky. Suddenly, the sun is shining, the earth is red, and there is a golden beauty everywhere!

We were all stunned by this sudden beautiful scene: the glow reflected the child's face, as red as a ripe red apple; Look, the big white dog turned red, red rooster turned golden, and the black hen turned rosewood; Look at those two little white pigs running on the ground, chasing each other, and they have become particularly cute little golden pigs.

Only for a moment, the clouds in the sky burned from west to east, as if they were on fire in the sky. Look, the burning clouds in the sky change greatly, from red to gold, from purple to yellow, from gray to lily. Pink, crimson, pear yellow, grape gray, eggplant purple, these colors are all available, and there are some unknown and strange colors that have never been seen before.

For a while, I was in a trance, and the clouds in the sky were like this. In fact, nothing looks like it, and I can't see anything clearly. When we lower our heads, rub our eyes and want to have a look later, the sky just doesn't understand the hearts of children who love it. In just a few minutes, the fiery red clouds disappeared without a trace, and there was no trace.

Another day, after the rainstorm, the sky turned into a charming rainbow. Red, orange, yellow, green, blue and purple, all the surnames in the world look up. Children are even more surprise gift: some are pointing and smiling; Some just stand still and watch quietly; Others shout and tell each other. The seven-color rainbow reflects the world, so dazzling, so gorgeous, so mysterious!

One day, my mother washed clothes in the sun. I approached her playfully to play with water, and then I played with blowing soap bubbles. Play, I found out? New world? There is a rainbow in the soap bubble! I am as happy as Columbus's sudden discovery of the new continent, and I think this seven-color rainbow is particularly beautiful and mysterious!

Have you ever wondered why soap bubbles have rainbow colors? As a child, I naturally feel very curious and puzzled. It was not until I studied physics in middle school that I suddenly realized. It turned out to be an optical phenomenon formed by the refraction of sunlight hitting things at different levels.

When white light (a mixture of different colors) shines on a film with two reflective surfaces, various reflected waves interfere with each other to form rainbow stripes. When you watch a movie from different angles, you change the path of light to your eyes, so the color of the stripes will also change. If the viewing angle of the film is reduced, the number of films that light must pass through to reach the eyes will increase, thus causing greater interference.

In fact, everything we see is produced and influenced by the nature of light. Light is a kind of energy, which propagates in the form of waves. The human eye can only see what is called? Visible light? The fluctuation frequency of. If we fully understand the fluctuation of light, we can explain the source of color, the way of light propagation and what happens when light meets different substances.

What kind of things is light? Baidu, you can get the basic answer: light is the electromagnetic wave that the human eye can see, which is the so-called visible spectrum. In the scientific definition, light refers to all the electromagnetic spectrum. Light is composed of photons as basic particles, which has particle property and fluctuation, and is called wave-particle duality. Light can propagate in transparent substances such as vacuum, air and water. The range of visible light is not clearly limited, and the wavelength of light acceptable to ordinary people's eyes is between 380-760nm. The light people see comes from the sun or with the help of light-emitting devices, including incandescent lamps, fluorescent tubes, lasers, fireflies and so on. Light is an indispensable substance for human existence.

The light closely related to our life adds a little beauty and mystery to people's monotonous and boring life, which makes people feel warm and beautiful and full of poetry.

Tell me, isn't light a beautiful, magical and mysterious thing? This is really a poetic life, poetry in life.