Da Vinci’s Scientific Code

   Leonardo Da Vinci invented submarines, gliders, and tanks five hundred years ago. Then … the first submarine was built in 1620; the first manned glider flying into the sky in 1891: the first batch of tanks was put into use in the 1910s.
   That’s true. Most of Da Vinci’s inventions have been lost, and he has to start over again hundreds of years later, because Da Vinci is a Renaissance man. During the Renaissance, ancient Greek manuscripts full of wonderful ideas were brought to Italy, and everyone was excited. Overnight, they devoted themselves to all kinds of art and a bit of quirky science. To be a Renaissance, you have to be involved in all disciplines-so ideally, people are not particularly proficient in science, writing or fancy swimming-they have to be proficient in everything.
   Mastering everything is a great plan, but it is too difficult, but Da Vinci can still manage to get it. In fact, he can almost be said to be a Renaissance man: he is one of the greatest painters to date-he can draw maps; he can sculpt; he observes celestial phenomena; he plays with musical instruments composed and invented by himself: he Studying rocks: he designs buildings-even planning towns; he depicts plants and fossils; he dissects the human body without letting him drop a drop of blood … (It doesn’t matter, it’s just a corpse. But it’s also amazing because he’s in the corpse’s The heart and brain are infused with wax so that they can make beautiful human specimens).
   Da Vinci is also handsome, active, has good vision, and is physically strong-he is said to have broken his horseshoe with one hand. He is also very kind and is a vegetarian. He buys the bird in the cage and releases it.
   Of course, he is still an inventor. As a Renaissance man, this meant that Da Vinci was very busy. He made a lot of notes, all of them amazing ideas and clever illustrations, but he never had time to sort them out and publish them. Moreover, he was a little worried that people would steal his ideas or use them to kill each other. In addition, he was constantly traveling, so while he was alive, many of his inventions were only known to him. After his death, his archives were scattered in all corners of the world, most of them in the hands of artists, so his more scientific works did not receive much attention. This situation continues to this day. Books about Da Vinci tend to introduce only his artistic talents.
   The Legend Begins
   AD 1452, Leonardo da Vinci was born in the vicinity of the text Nishimura Tuscany. We don’t know much about his early life, but we do know he grew up in an exciting and turbulent age. At that time Italy was divided into five regions, each of which was governed by a large city: Rome, Florence, Milan, Venice, and Naples. Most of these areas are ruled by cruel families-Da Vinci works for two of them, Burgos and Medicis. Although they are basically scary, they like art. In addition, each family always fought frequently, and they fought each other frequently with Turkey and France, so they liked artists and people who made weapons. Da Vinci can do both, so they like him very much.
   In the beginning, Da Vinci was more invested in art than in science. In 1649 he was taken to the studio of the famous artist Verogio. It is said that Da Vinci helped the master to paint a portrait head, which made Verozio almost ashamed to retire. Another time, he drew a monster, hung in a darkened room, and illuminated it with a beam of light, which scared his father to a half death.
   Da Vinci was a homosexual. At that time, homosexuality was considered a crime and even executed by fire. He was accused anonymously of homosexuality in 1476, although his later convictions were not convicted, which became one of the reasons he left Florence to Milan shortly after. (It was also proved to be homosexual by Michelangelo Bonarotti and Rafael Sanzio, who were later honored as the three masters of Renaissance art.)
   During this period, he had already Engineering created an interest that was as good as art, so he wrote a letter to Milan’s ruler Rudvix Focha, enumerating all the miraculous inventions he could make, and those inventions could help him win all The wars to start—such as bridges and rock-throwing machines—we mentioned that he would still paint a little, so there was no doubt he was accepted. In 1482 Ludwig hired him to … play the harp. Fortunately, he plays the harp equally well
   Becoming a harpist did not prevent Da Vinci from inventing, and his peaceful life did not prevent him from conceiving many weapons of war. These inventions haven’t been made, even if they exist, they are rare, let alone used-some are too expensive, some are too advanced, and some are too weird. The tank was a little weird-his wheels turned in the opposite direction. Perhaps Da Vinci wanted to create a trap for the person who stole his idea, maybe it was just a mistake, or it was simply a joke.
   It is worth mentioning that in all of Da Vinci’s notes, the letters are written in reverse (others need to use a mirror to read what he wrote). Some say it’s a way to protect his creativity, and some say it’s because he’s left-handed.
   The conquest of the sky
   in the beginning, Leonardo da Vinci’s invention is just the idea in his head, he did not take into account many details – he has not thought about what thoughts fees scientific issues behind this. But starting in 1480, he used anatomical corpses (especially animal corpses) to explore the truth below the surface of objects. Another idea that obsessed him was born at this time.
   Da Vinci’s parachute, like many of his inventions, is a great idea, and it’s really shown how it works. (Although it needs a bit of improvement to function properly-the parachute needs a hole in the top, otherwise it will shake violently when landing.
   Da Vinci’s helicopter design is one of his few truly influential inventions One: Despite being forgotten for centuries, it did inspire Igosikowski, who made the first successful helicopter in the 1940s. But it was not the first helicopter design— -As early as 1325, there were some similar small toys, although their design was based on the principle of windmills. These small toys are not self-powered as designed by Da Vinci, which means that if Da Vinci made a working model—he did seem to make one—then it would become the first powered aircraft in the world. But, like a parachute, flying with it is not much Fun thing; the base will rotate in the opposite direction of the propeller. (The same thing happens with modern helicopters if there is no auxiliary thruster at the rear.)
   Da Vinci only drew a sketch of a helicopter and a parachute, but he drew a lot of sketches of other aircraft-most of them have flapping wings like the birds he studied. Most of the time Da Vinci invented, he was more scientific, but when he was thinking about flying, he always had a little bit of imagination, so some of his inventions were not very realistic: for example Aircraft with wings instead of paddles. The weight of all the parts needed for this aircraft is estimated to be 300 kilograms, and it takes a human to turn the hand wheel and step on the feet to leave the ground. It seems that the speed is very very fast.
   Unfortunately, Da Vinci’s aircraft didn’t have much opportunity to operate, especially because it could hold all the bulky materials. Da Vinci’s main problem (which also affected many of his other inventions) was that there were no lightweight power sources at the time-no generator, no gasoline engine, no fuel cell. All he could possess was human muscle, horse power, and very primitive steam power. He has used the power of river water in other inventions, but river water is not suitable for flying, and horses are not suitable (it always eats magazines in the cabin).
   Da Vinci still figured out a way to drive the aircraft-albeit a bit odd. The method is for the pilot to turn a handwheel-bend a powerful bow, like a crossbow. When the bow is released, it will move its wings, causing them to flap briefly. The machine will then fall unless the pilot can quickly pull in the bow again (and keep repeating).
   Another problem with the Da Vinci aircraft is that, although he has done a lot of research on birds, he still misunderstands the basic principles of their flight-he thinks that birds can fly because they flap their wings up and down, as if a person were Do chest expansion exercises like that. This is not the case. Therefore, even if he can obtain a good source of power, his wing flapping aircraft cannot fly into the sky.