CCTV took action, and the children's little four doors were saved
Text | Mi Li's mother
The holidays are always a good time to fill in the gaps and absorb new knowledge, and I often save up some long-form documentaries that I don't usually have time to watch, and wait for the holidays to watch with Mi Li.
Seeing that Mi Li has been promoted to middle and high grades, I will also consciously look for some science knowledge and popular science content that will be involved in junior high school or even high school.
In the form of interesting documentaries, these unfamiliar concepts are instilled into children's brains little by little, and when they are really exposed to this knowledge, they will feel very familiar, and they will not resist or be afraid of difficulties.
Carrying private goods for entertainment has always been the old mother's strength.
Mi Li's mother also shared with you the chemical documentary "Mendeleev is Busy", the style of the whole film is a relaxed and funny, which can be regarded as a "light comedy".
In terms of physics enlightenment, I recommend this "My Newton Coach" to everyone, the two sets of films are the same production team, and the style is interesting and close to life.
There are a lot of professional knowledge introductions in the film, but they use easy-to-understand explanations, coupled with funny small animation explanations, which are simple to understand, and children will not feel obscure after watching them.
Recently, Mi Li's mother found that CCTV once again made efforts to produce high-quality products, and launched the third part of the team's "Science and Technology Trilogy" "Super Pasteur", which also completed the popular science documentary of biology!
Before starting the study of a discipline, the first thing is to build a framework, we need to know what the discipline is studying, and what kind of survival and operation laws its research object has.
Take biology as an example, the main study of life on Earth is the main study of this discipline, and with this main framework, we can further explore the underlying laws of life.
This film is to help children sort out the basic context of biology.
Like the two previous films, the biology documentary also has a celebrity "guide", that is, the famous founder of microbiology and the famous French microbiologist Pasteur.
The documentary devotes an episode to the originator of biology.
Pasteur is not only the pioneer and pioneer of microbiology, he has been studying pathogenic bacteria all his life, but also the pioneer of vaccinology, and his research results have also influenced later generations of scientists.
We have all seen "pasteurized" milk bars in the supermarket, which can not only retain the flavor of milk, but also sterilize and sterilize, which was invented by Pasteur, who lived more than 100 years ago.
France was a big winemaker, but at the time, winemaking was a matter of luck.
There are always wineries that find that the wine in the barrel suddenly loses its taste for some reason, or becomes sour and difficult to swallow, and they turn to Pasteur for help.
After research, he found that during the fermentation process, the lactobacilli in the wine kill the yeast, thus changing the flavor of the wine.
After repeated experiments, he developed a method that can not only kill lactobacilli, but also retain the mellow aroma of wine, which is the "pasteurization method" that we still use today.
Pasteur not only left us with mellow wine and safe milk, but also conquered a series of viruses such as rabies virus, chicken cholera, anthrax, etc., and developed corresponding vaccines that saved countless lives.
On the road of scientific research, what kind of setbacks and blows did he suffer, and how did he overcome countless problems like a hanging? I believe that after watching the film, the children will definitely be able to appreciate his inspirational and legendary scientific research spirit.
When it comes to eating, it must be closely related to our lives, but have you ever thought about how the food we eat today is chosen and handed down?
This also starts with the evolution of paleontology.
The evolution of paleontology is inextricably linked to "eating", and the way they compete for food is really life-and-death.
In 2003, scientists found a Cretaceous pterosaur fossil in Brazil, and named it "toy pterosaur" because it looked very much like a toothless pterosaur toy played by children. (This name is a bit too sloppy.)
Not only is the name arbitrary, but the cause of its death is even more bizarre.
Scientists found a yucca leaf stuck between its upper and lower jaws, and they speculated that the toy pterosaur had a throat that got stuck and was unable to eat, and eventually starved to death.
Fossils are the Earth's notebook, silently recording everything that happened in the past and recording the process of natural selection.
The relationship between living things and food is so mysterious and fascinating.
The saying "big fish eat small fish, small fish eat shrimp" describes the concept of "food chain" in biology.
This magical competition not only did not make the creatures extinct, but made them more diverse.
Whether it is animals, plants or microorganisms, they come to Earth for only two purposes: to survive and reproduce.
Therefore, trying to survive has become the first priority, and "eating" has become a basic skill, and all living things depend on food.
Eating not only allows you to survive, but also helps other creatures to continue their lives.
During the Jurassic period, there was a vegetarian dinosaur called Emeisaurus, and its diet was mainly the leaves of pines and cypresses, and it ate about 2 tons a day.
Do you think that the pine and cypress will be eaten by Emei Dragon and become extinct?
Not really.
As the dragon walks, the seeds of the pine and cypress will travel with its droppings, taking root and sprouting in different places, and a new forest of pine and cypress will grow.
On the contrary, with the extinction of Emeisaurus, there were no tall animals that could eat them and help them reproduce, so these tall plants were gradually replaced by low plants.
Therefore, the survival of the fittest mentioned in the "Theory of Evolution" does not necessarily depend entirely on the strength or weakness of the organism itself, and the survival of the fittest in the second half of the sentence is the core of the problem.
Populations that are better able to adapt to changes in their environment have a better chance of surviving the changes.
In addition to these rigorous studies, scientists sometimes have brainstorms.
Everyone has eaten beef, but does anyone dare to try the bison that has been preserved in the permafrost for 50,000 years?
There is really such a scientific research madman who has tasted this "freshness" for all mankind.
Before 1979, paleontologist Dale Guthrie discovered an ancient bison during a field expedition, and Guthrie named the bison "Blue Baby".
Discovered in the permafrost of Alaska, Baby Blue died 50,000 years ago, and judging by the scars on his body, it is highly likely that he was killed by a jaguar.
Guthrie had the idea of tasting the aged bison, so he invited a few friends over to his house.
So what is the taste of this piece of aged beef, let's go to the documentary to find the answer. (Guiding the Way Episode 2)
There are also a lot of interesting trivia in the film, so let Mi Li's mother give you a few spoilers first.
Children who often read popular science may know that the genome of chimpanzees is 98.6% the same as that of humans, so do you know that bananas, right, are the fruits we eat every day, and they are genetically similar to humans?
Moreover, the similarity is as high as 50%!
This unexpected "kinship" relationship also exists in many animals.
For example, the artiodactyl hippopotamus belongs to the same category as pigs, cows, giraffes and other animals, but the relationship between whales and hippos living in the sea is far more intimate than that between hippos and giraffes.
Genes are really a very interesting thing, children are like fathers or like mothers, in fact, they are written from genes, many years ago, Mendel's pea experiment revealed how genes are inherited.
The documentary also deliberately organized an experiment for primary school students to demonstrate the process of heredity, which is very intuitive and easy to understand.
There is also the morphological evolution of the eye.
The jellyfish's flat eyes allow it to distinguish between light and dark, planarians' sunken eyes are sunken to provide a clearer field of vision, and eventually, the retina is formed at the back of the eye, a lens is formed at the front end, and special cones and rods are present, which have evolved into the structure of the human eye today.
Sometimes we are unwell and take painkillers, but what is the mechanism of its action?
How do painkillers know where a person's body hurts?
Is it really swimming around in the veins, asking "who hurts" from head to toe?
Let's find out in the documentary!
The 25-minute duration of the episode is crammed with knowledge points, and Pasteur, a master of biology, is used as a tour guide, connecting multiple disciplines related to biology - such as paleontology, zoology, botany, microbiology, biomedicine, ......
The light-hearted and humorous language and intuitive and vivid pictures make children look unburdened, and they are seamlessly connected with the biology knowledge of junior and senior high schools, which virtually helps children get familiar with the preview in advance.
Moreover, after watching the deeds of the scientists in the film who overcame many difficulties, faced challenges, and persevered in scientific research until they found a breakthrough, I believe that the children will also be inspired by these spirits.
Take advantage of the holiday time to come and watch this interesting and knowledgeable documentary together!
Personal Profile: @米粒妈爱分享 Mi Li's mother, American returnee, Haidian parent. Focus on learning, educational experience and further education.