The painter is just a cover, is the alien really the true identity of Leonardo da Vinci?
Speaking of Leonardo da Vinci, what is your impression of him? "Mona Lisa"? "The Last Supper"? A painter who was passed down to later generations? These are all correct, but it would be wrong to say that Leonardo da Vinci was just a painter.
The voices of many people: Mr. Du Shi, have you changed your career to clickbait? ?
Reply solemnly: ?Whether it is a clickbait or not, you will understand after reading it. His abilities are so many that it will make you doubt your life. Well, let’s just skip the painter, right?
Portraits of Leonardo da Vinci
First, he is called the ancestor of physiological anatomy
Leonardo da Vinci Mastered the knowledge of human anatomy and studied the structure of various parts of the human body starting from anatomy. He was the first to use borrowed materials to represent the internal structure of the human brain, and was the first to envision a heart and eyes made of glass and ceramics.
He discovered the function of blood, believed that blood plays a metabolic role in the human body, and believed that blood circulates continuously. Leonardo da Vinci was the first to discover that the heart has four chambers and draw the heart valves. He believes that one of the causes of death in the elderly is arteriosclerosis, and the cause of arteriosclerosis is lack of exercise. Later, British scientist Harvey confirmed and developed these physiological and anatomical achievements of Leonardo da Vinci.
Anatomy diagrams in Leonardo da Vinci’s notes
Second, a genius in architecture
In terms of architecture, Leonardo da Vinci designed bridges, Churches, city streets and urban buildings. In urban street design, he separated vehicular paths and sidewalks. Secondly, the moat of Milan was designed and built under his supervision.
After Leonardo da Vinci left Santissima Anujata in 1502, he worked as a military architect and engineer under Caesar Borgia, the son of the infamous Pope Alexander VI. .
In 2019, teachers and students at the Massachusetts Institute of Technology (MIT) in the United States used 3D printing technology to reproduce the bridge plan designed by Leonardo da Vinci in 1502, using a miniature model to prove its feasibility. According to the design drawing, the bridge was 240 meters long, making it the longest bridge in the world at that time. Leonardo da Vinci designed the bridge at the request of Sultan Bayez II. Unfortunately, due to the strange shape of the bridge, Sultan Bayez II could not accept it, so the design sketch was buried forever.
Da Vinci’s bridge design draft
Third, part-time military inventor
Da Vinci invented spring guns, submunition bombs, three-barreled cannons, Tanks, floating snowshoes, wetsuits and submarines, double-hulled battleships, gliders, ornithopters and helicopters, rotating pontoons and more. On April 26, 2008, in Payenne, a city in western Switzerland, 36-year-old Swiss Olivier Vietti-Tepa used a pyramid-shaped parachute designed by Leonardo da Vinci to fly from a helicopter 600 meters above the ground. Jump up and down successfully.
The flight model designed by Leonardo da Vinci
Four. Geologists walking in the wind and rain
Da Vinci based his theory on the fossils of marine animals found on the mountains. The facts infer that the earth's crust has changed, and point out that the traces of floods on the earth are proof of changes in the sea and land. This idea is quite similar to Hutton's geological discoveries 300 years later. And before Magellan circumnavigated the world, he calculated that the diameter of the Earth was more than 7,000 miles.
Five. Physicists in the Laboratory
Da Vinci rediscovered the concept of liquid pressure and proposed the principle of the connector. He pointed out: In the connector, the liquid level height of the same liquid is the same, and the liquid level height of different liquids is different. The height of the liquid is inversely proportional to the density.
In the 15th century, he first began to study the theory of friction between objects. He discovered the principle of inertia, which was later proven by Galileo's experiments. He believed that a projectile initially rose along an inclined straight line, moved in a curve under the mixed action of gravity and impulse, and finally fell vertically under the action of gravity when the impulse was exhausted.
It also foreshadows the atomic principle of matter and vividly describes the power of atomic energy:? That thing will explode from the ground, causing people to die suddenly in a silent breath, and the castle will be completely destroyed. , it seems to have powerful destructive power in the air.
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In optics, he imagined that light propagates from the center outward; believed that light moved in a similar way to water waves and sound waves, and foresaw the Doppler effect; he believed that the speed of light was limited, earlier than Scientists of the same period; designed and conducted pinhole imaging experiments; designed optical instruments based on the structure and function of the eyeball.
In mechanics, Leonardo da Vinci emphasized that mechanics and mathematics are also the basis of natural science, and he studied many mechanical problems.
He concluded based on experiments and observations: A heavy object falls along a straight line connecting it to the center of the earth, and the falling speed is proportional to time.
The connector principle first proposed by Leonardo da Vinci
Part 6. The earliest robot research in Western civilization
Designing a primary robot. The most amazing thing is that Leonardo da Vinci also designed a method to perform heart repair surgery.
In order to understand human beings themselves, Leonardo da Vinci personally dissected dozens of corpses and accurately understood and mapped human bones, muscles, joints and internal organs.
What is surprising is that Leonardo da Vinci did not even have a concept of the working mechanism of the human circulatory system. What's even more amazing is that in 2005, a British surgeon used the method designed by Leonardo da Vinci to perform heart repair surgery. However, the study of anatomy did not bring reputation to Leonardo da Vinci at that time, but suffered numerous slanders.
However, it was with this in-depth understanding of the human body that Leonardo da Vinci drew the first humanoid robot in Western civilization in his manuscript.
Da Vinci gave the robot a shell of wood, leather and metal, but how to make the robot move was a big headache for Da Vinci. He thought of using the lower gear as a driving device, so that the robot's arms could be waved and the robot could sit or stand by engaging the gears of the two mechanical rods with a disc gear on the chest. What's even more amazing is that, connected to the head through a transmission rod, the head can rotate and even open and close the jaw. Once equipped with automated devices, the robot can even make sounds.
It turns out that more than 500 years ago, the prototype of robots already existed.
Seventh, does he also know the unpopular cryptography technique?
People who have watched "The Da Vinci Code" probably know the Da Vinci cryptex. In fact, in the society at that time, people paid more and more attention to the confidentiality of documents.
The cryptex designed by Leonardo da Vinci is classical in shape, contains the characteristics of the Renaissance, and is elegant in design, in line with Leonardo da Vinci’s wise style. According to the storyline, the cryptex contains papyri about the greatest secret of the Priory of Sion and even Christianity as a whole. The cryptex designed by Leonardo da Vinci contained a container filled with vinegar. If the cryptex was smashed by force, the vinegar would flow out and dissolve the papyrus.
To open the cipher cylinder, you must unlock a 5-digit password. There are 5 turntables on the cipher cylinder, each with 26 letters. There are as many as 11,881,376 possible combinations of passwords. .
Da Vinci’s design manuscript
Eighth, obsessed with mechanical research
Being obsessed with the mechanical world. Underwater breathing device, pulling device, clockwork transmission device, ball device, reverse spiral, differential spiral, anemometer and gyroscope? Leonardo da Vinci presented his countless fantastic ideas to the world. Give an example.
Very early on, Leonardo da Vinci was dissatisfied with the four-wheeled carriages at that time. In his scientific world, the shadow of motor vehicles has long been present. In fact, it was this "Da Vinci Mechanical Car" that ignited the fire that inspired the invention of the modern motor vehicle.
Since it is a motor vehicle, power issues must be considered. Leonardo da Vinci installed two springs in the middle of the motor vehicle to solve this problem. Human power turns the rear wheel of the car so that the gears mesh with each other, and the spring is tightened to generate force, which is then transmitted to the wheel through leverage.
So how to control the speed of the car? Da Vinci also thought of it. He installed a disk device on the body of the car. There were many square wooden blocks on the surface of the disk. The other end of the iron rod connected to each wheel was connected to the disk. This was the device used to control the speed of the vehicle. The greater the number of wooden blocks placed on the disc, the greater the friction with the iron rod and the greater the resistance. The slower the wheel runs and the longer the distance it travels.
Of course, Leonardo da Vinci also thought of the braking device. There is a wooden block between the gears. Pull the rope to trap the wooden block between the gears, and the car can stop.
However, the car could not carry people because it could not travel very long distances on the power of springs alone.
At the same time, Leonardo da Vinci also cleverly used springs in clock design. Later, the principle used in large clocks came from Leonardo da Vinci's idea. Only in this idea, the elastic force of the spring is replaced by the gravity of the object. The downward gravity of the object is evenly transmitted through the engagement of many gears, so that the clock can maintain uniform motion.
In addition, musical instruments, alarm clocks, bicycles, cameras, thermometers, barbecue machines, textile machines, cranes, excavators? Leonardo da Vinci had countless inventions and designs, and if these inventions and designs were published at that time It is enough to advance the progress of our world's scientific civilization by 100 years.
Da Vinci’s mechanical design manuscript
Ninth, artistic creation
During the Renaissance, Leonardo da Vinci, Michelangelo and La Phil's achievements were the highest. Their artistic achievements reached the second peak of Western plastic arts after ancient Greece. In terms of painting alone, they reached the first peak in Europe. Among them, Leonardo da Vinci is the most prominent. Engels called him a giant among giants. In terms of artistic creation, Leonardo da Vinci solved major problems in the three fields of plastic arts: architecture, sculpture, and painting:
(1) Solved the design of monumental central dome buildings and the ideal city planning issues.
(2) Solve the problem of equestrian monument statues that sculptors have been deeply troubled by since the 15th century.
(3) Solved the problems of two important areas of painting at that time: monumental murals and altar paintings.
Da Vinci's works of art not only reflect things like a mirror, but also guide creation with thinking, observing and selecting beautiful parts from nature to express. The mural "The Last Supper", the altarpiece "The Virgin of the Rocks" and the portrait "Mona Lisa" are the three masterpieces of his life. These three works are the treasures among the treasures left by Leonardo da Vinci for the world's art treasure house, and are the keystones of European art.
So how did later generations define him?
It is not accurate that Leonardo da Vinci was a great painter. He was a polymath who excelled in painting, music, architecture, mathematics, geometry, anatomy, physiology, zoology, botany, There have been significant achievements in astronomy, meteorology, geology, geography, physics, optics, mechanics, inventions, civil engineering and other fields.