The "multi -dynamic disease" of this world

Author:Institute of Physics of the Ch Time:2022.08.14

The world is a complicated place, which is incredible.

Sometimes, the more the subjects, the more in -depth research, the more I will leave more questions about any topic, whether it is mathematics or in the field of engineering.

Fortunately, sometimes the simpler explanation is at hand, and you can give a good answer with the GIF moving map.

Here are 22 moving maps. From explanation of the perianship to the internal mechanism of demonstration locks, they can help you better understand the surrounding world.

1. How to visualize the value of the circular rate

The perimeter (PI) is the ratio of the perimeter to the diameter of the circle. It is generally represented by the Greek letters π. It is a mathematical constant commonly existed in mathematics and physics. π is also equivalent to the ratio of the area of the circle to the square. It is the key value of accurately calculating geometric shapes such as circular length, round area, and ball volume. In analysis, π can be strictly defined as the minimum positive number X of SIN X = 0.

2. How to lay the submarine cable

Submarine Optical Fiber Cable, also known as the underwater communication cable, is a wire wrapped in insulating materials and laid it on the bottom of the sea to set up telecommunications transmission between countries. The submarine optical cable communication has a history of more than 100 years.

3. The process of fetal facial development in the uterus

In 2011, the documentary "Human Exploration" shot by Broadcasting Corporation showed the development of infant facial development. The video shows how the facial contour develops only for only 3 months, and is combined like a puzzle. The animation is made based on the video.

4. Pythastic theorem during operation

The Pythagorean theorem is the pearl in geometric, which is full of charm. For thousands of years, people's proofs have been happy. The following is an intuitive verification of the Pythagorean theorem in the method of experiment:

1. Take the three sides of the rectangular triangle A, B, and C. Among them, C is the oblique edge, which are made into squares with a bottom side of A, B, and C, respectively.

2. Fure the length of the bottom side of the side as A and B to fill the water, and then pour the water from the two containers into the container with the length of the bottom side of the bottom;

3. Miracle occurs, and the water in the two containers can just fill the third container!

5. How does traffic blockage start?

The reason for this traffic jam is that when the traffic flow is saturated, it is actually very unstable to move forward at a constant speed. As long as there is a little disturbance, such as the driver in front of the driver changing the aisle or stepping on a brake, it will immediately cause the rear vehicle to make a chain reaction in turn, and then form a virtual traffic jam. Far behind.

6. How to make Marri -La cheese

Mozzarella Cheese is a light -flavored cheese produced in the local area of Camppania, Italy. It is made of buffalo milk. Missri was a "flower of cheese" in Italy.

7. How does pine cones grow up

Pine cones, nicknamed: Pine Tower, the seeds of Pine plants, pine nuts after maturity. Reasons for the opening and closing of pine cones: During the dry days, the scales of pine cones will be opened; on the contrary, if the scales of Pine cones are closed tightly, it means that it will rain. This is because when the air is dry, the scales are dry and hard, and the scales will shrink. When the air is humid, the scales will absorb water vapor to become soft, and the pine cones will naturally restore the original shape.

8. X -ray image when people swallow

Swallowing is not a random activity, but a reflection that must have specific stimuli to cause. The swallowing when eating normally is because the tongue rolls pushed the dietary group into the pharynx. The pharynx is connected with the mouth cavity, nasal cavity, laryngeal cavity, and esophageal. During the swallow, the food group stimulated the pharynxue, reflected the soft palate, and the post -pharynx wall protruded forward, which closed the nasopharynx passage, and the food was inconvenient to enter the nasal cavity. At the same time Will hate cartilage, seal the throat channel, make the breathing pause, and prevent food from entering the trachea.

9. How to spread at home at home

WiFi is an abbreviation of Wireless Fidelity in radio technology. Now, the word WiFi is already synonymous with short -distance radio technology.

The principle of transmitting data using WiFi is on the basis of cable local area networks, and wireless access to the Internet through wireless hub, wireless network bridge antenna, and network cards. It is a group (package) sent by the user, and then converted into a microwave signal to achieve various functions of the wireless local area network.

10. How did the zipper pull up

The zipper is also known as pulling. It is one of the top ten inventions that facilitate people's lives in modern times. The emergence of the zipper was a century. It was first used for military uniforms. However, the promotion of the zipper in the folk is relatively late. It was not accepted by women until 1930 to replace the buttons of clothing. Chinese zipper production was passed from Japan to Shanghai in 1930.

11. How to park parallel and do it correctly every time

As long as it is where the crowd concentration, parking has become a big trouble in urban life. Parallel parking is not only to pass the driver's license test, but also to make a more fast and efficient car in the process of parking in the city.

12. How does a manual transmission work

Manual transmission is called manual transmission (Manualtransmission (MT), also known as mechanical transmission, also known as manual gear, that is, you must use the hand to mobilize the transmission (commonly known as "blocking") to change the gear meshing position in the transmission and change the transmission ratio , To achieve the purpose of the transmission. 13. How does the violin strings speak

Rub the strings with bow and make the piano sound is the first step in the violin. It is full of contradictions in the process of bow hairs on the string. Stress, fast bow speed, and contact points and angles are important factor that directly affects pronunciation. The loudness and properties of this sound (aside from the acoustic conditions and the skills of the performers) depends on the vibration of the vibration box from the string to the resonance box.

14. How is the fork made

The fork is an ancient agricultural tool. After many centuries, no one thinks that it can be used to eat. It was not until the 11th century that a young lady from Constantinople brought the fork to Italy, and this custom passed to Europe.

15. How does Michael Jackson keep tilting when singing "Crime Masters"

In the live performance of Michael Jackson in 1992, the 1992 single "Smooth Criminal" performed a classic magic movement of 45 -degree corner. This action caused a lot of sensation at the time. This is not done by tie the rope on the body, but to complete this action through specialized shoes. In 1993, MJ also applied for the US patent (US 5255452) for this.

16. How can a boat cross the Panama Canal

The Panama Canal is the canal connecting the Atlantic and the Pacific Ocean. The canal is not a horizontal connecting the two oceans. As long as the ship is through the canal, a lot of ship brakes must be built. The basis is the principle of connecting instruments. Through the first -level ship gate, the ship passes through the canal.

17. How is fresh niche powder made?

Tongxin powder is also known as noodles, which is a well -known pasta in Western countries, with solidity and hollow.

18. How did ants walk

When the ant walks, the front foot, back foot, and the middle foot on each side form two groups of triangles. This is the case every time you move forward. When one group of triangles are lifted forward, the other triangle supports the body and keeps it. Balance of the body.

19. How does the key unlock

Almost all the locks that use the key have one thing in common: there are many "obstacles" inside the lock, such as marbles, convex blocks, and so on. If the matching key is unlocked, the obstacle will enter the groove of the key, and the key can turn the lock core to open the lock. If the key does not match, the obstacles will not enter the groove of the key to prevent the lock core from rotating.

20. Slow movements when popcorn burst

In fact, popcorn is not modern food. As early as 9,000 years ago, it was eaten in Central and South America. It also became a staple food for the Indians more than a thousand years ago. The raw material of popcorn is the seeds of corn. The source of the explosion of popcorn flowers is the embryo of corn kernels. Embryoscopy is a source of nutrition for corn seeds. The shell is waterproof and hard fiber, and the interior contains water and starch.

22. How do dogs drink water

The researchers found that the dog's tongue was not a long -handle spoon structure, but as a sticky whip, which stuck the water on the tongue and rolled it up in the mouth.

Because the dog's tongue is curled backwards, the area of contact with water is greatly increased, and when the tongue retracts quickly, it will pump up a water column that connects the dog's tongue from the water, and then you can drink your mouth and drink it to drink. It's water. And all this happened in a very short time, so most people were not easy to find.

Compared to Wang Xingren, the meow star is more cute

Some graphics are from http://blazepress.com/