Science Essay in Life, Science Essay in Life

There is science everywhere in life, but I just don't pay attention to it. People's clothing, food, housing and transportation in daily life are also inseparable from science, and as for production, labor, sports, health, and military, science is needed. "Be proud of advocating science and be ashamed of ignorance" There are many conventional common senses in daily life, which are all the experience of predecessors.

As a result, we mechanically take this common sense of life for granted to be correct and beneficial, and often do it without thinking. Over time, it becomes a habit, and it also makes your life troublesome, because these so-called "experience" and "common sense" are precisely contrary to the common sense of life, and to believe in science, only by respecting science, it is possible to avoid taboos and be less troubled by its troubles.

In winter, when the weather is cold, the glass bottle cap often cannot be unscrewed, and no matter how hard it is used, it will not work, and experienced people only need to put the bottle cap on the fire to roast. It can be easily unscrewed. Do you know why?

This is the principle of thermal expansion and cold contraction. When the weather is cold, the cap shrinks, and it is not easy to unscrew the bottle by biting the mouth of the bottle tightly, and when the fire is heated and expanded, the cap is loosened, so it can be opened without much effort.

When the old man struggled to thread the needle, she put the needle in her hair and wiped it, do you know why? It's actually lubrication and friction. Human hair contains oil, and when the needle is rubbed with oil, it is equivalent to adding lubricating oil, so it can reduce friction and can easily thread the needle.

Luncheon meat, dace with tempeh, tomato sauce beans, ......They are all delicious canned foods, and they can be stored for a long time without being easy to spoil. This is because the cans are sealed, so bacteria cannot enter. When people make canned food, they extract all the air from the can and seal it.

In the absence of air, even if the food inside is stained with a few bacteria, they will not be able to survive or multiply! This makes use of the air in the conditions in which the microorganisms live.

Some foods cannot be heated with high temperatures, otherwise their nutrition and taste will be affected. For these foods, we can quickly heat them to a certain temperature (usually 60 85) for 15 to 30 minutes, and then cool them quickly. This kills most of the microorganisms in the food while maintaining its original taste.

This heating method is called Pasteur sterilization, which was invented by the French scientist Louis Pasteur (Louis Pasteur), science to study various natural phenomena and find the causes and laws of their emergence and development. Every small question has the potential to lead to a scientific discovery. Lsaac Newton was curious about the apple falling to the ground and discovered the law of universal induction; James Watt was curious to improve the steam engine by lifting the lid after the water had boiled.

As long as we pay attention to the observation and start from the problems around us, we can all enter the world of science. Science is all around us.

I'm with science.

The world we live in is both mysterious and interesting, and it is up to us to explore its mysteries and uncover its true colors. Scientific knowledge is an important part of scientific literacy, and science is a way for us to acquire more scientific knowledge, which enables us to gain a deeper understanding of science, scientific concepts and things. Technology has long been deeply infiltrated into our lives and integrated into one.

It is said that it is integrated with our lives because it is closely related to everyone, and we can see "scientific fitness" and "scientific health" everywhere in our lives. In fact, it reflects the practicality and instrumentality of popular science in the public consciousness.

I think the middle school years are the best time to develop an interest in science and the ability to innovate. As long as we analyze carefully, make bold assumptions, use imagination, and dare to innovate, then every one of our young people has the potential to become a scientist.

I'm not very proficient in science, but I still have a little bit of exposure to it. Once, I poured different amounts of water into the same cup and tapped it several times, and found that the sound was different, and went online (high-tech for the benefit of mankind, very useful) to find out why. It turns out that the knock causes the cup to vibrate, and the cup vibration drives the water surface to vibrate, which causes the air column to vibrate and emit it, and the air fluctuates, and when it touches the water surface, it goes back to superimpose with the original wave to form a standing wave (our common stringed instruments also rely on the principle of this standing wave to produce sound of different frequencies), so as to produce sound.

Same. The cups of water and air columns all vibrate, but the frequency, amplitude is different. In fact, this profound scientific principle is all around us, and we must learn to use it continuously for the benefit of mankind!

We must always maintain the awareness of science and technology, actively participate in daily scientific and technological activities, look for science around us, learn to use scientific methods to solve problems in life, and make life full of scientific fun!

** "Into Science" on TV Channel 10 - Science Channel, I love to watch it very much. There are many strange and mysterious scientific knowledge in this column, some of which have been explored and solved, while others are still waiting for scientists to continue researching. Tonight, while "The Biography of Liu Ming, the First Governor of Taiwan" has not yet arrived, my mother and I "walked into science".

Everything in the house is shaking for no reason", I was fascinated by this topic and couldn't wait to look down. The story began: In the home of three residential buildings in a community in Shanghai, the water and chandeliers kept shaking, which lasted for several months, making the residents unable to eat and sleep restlessly, and everyone thought it was **.

After the experts arrived, they investigated carefully and denied the claim that it could not last so long, and it was so powerful that it could easily destroy the house. So what's going on?

Experts carefully investigated around the community to find the source of the vibration, but found nothing. By chance, they found that 800 meters away from the community, there was a stone crushing factory, and the vibration generated by the stone crushers was particularly strong. But 800 meters away, it is not enough to cause the residents in the community to shake things.

Experts deduce that such power is only possible if resonance phenomena in physics occur. After the measurements, the results were surprisingly consistent. The frequency of the vibration of the lithotripsy and the vibration of the residential buildings is exactly the same, and they are both hertz.

Sure enough, the stone crusher was turned off, and the things in the residents' homes stopped shaking. Finally, the veil of mystery was lifted.

There is science in life, and science is also in life. As long as we explore and study, any mystery will be solved.

Please, you're offering a bounty of 0 points now...

400 words is not good, isn't it too lazy!!