1. Inventions Leonardo da Vinci
The presentation was prepared by Ilya Alexandrovich Litvinenko,
a student of the E2-16 group

2. Leonardo da Vinci
Leonardo da Vinci, perhaps, was the greatest inventor in history, but in his time there were so weak technologies that all the sketches of the genius remained at best on paper. Yes, Vinci painted sketches and charts of his devices and kept notes. But either he did not have the desire to translate them into reality, or lacked funds. As a result, in the life of da Vinci, virtually none of his inventions did not see the light. And they learned about the works of the brilliant inventor only after his death, because he never put his notes on public discussion. And this is incredibly sad because the design skills of da Vinci are far ahead of their time. If they were embodied in real inventions, who knows, there could be a revolution in the world of technology would have happened much earlier. On the other hand, many of the da Vinci sketches could not be realized using the instruments of the 15th-16th century. But in the 21st century, many engineers took pleasure in implementing the da Vinci projects and found out that they really worked. And would work, be it, and Vinci is a bit more daring and even a bit more inventive. Let's look at the inventions of da Vinci by the eyes of the man of the twenty-first century.

3. Bearings
Well, the bearing may not be the hardest thing the inventor can afford, but many modern technology works with bearings. Ball bearings allow you to rotate drive shafts, pushing goods in a shop or at a factory, it is the basis of virtually any moving mechanism. Smooth balls placed between two moving surfaces practically eliminate friction. For the first time, the idea, as many believe, was born even during the Roman Empire, but historians believe that it was in the notes of da Vinci that the first outline of the bearings appeared.
Many of the devices devised by the genius would not work without bearings. But as in the case with many other concepts of the inventor, the bearer had to rematch someone else.

4. Parachute
The speed with which the body falls depends on two factors: the force of gravity, which pulls down, and the resistance of the atmosphere in which it falls. In the absence of the atmosphere, the incident body will simply accelerate to a huge speed until it falls to the surface, but the air slows down until the body reaches the so-called ultimate speed. Different objects have different speed limits. A person falling in the Earth's atmosphere - this speed is about km / h Slow, right? Let it be, but this is enough to make the fallen man turn into a cake after a blow to the surface of the earth. Only parachute can save her.

5. Da Vinci, being fascinated by the idea of a flying man, conceived his parachute as a means for drifting through the air. His pyramidal structure was draped cloth. As Da Vinci wrote in his notes, such a device would allow a person "to fall from any height without any injury or damage." The naturalists of the twenty-first century, who realized the da Vinci's conception, admitted that he was working exactly as he intended.

6. Ornithopter
Da Vinci was inspired by the birds. He watched them, drew them and pondered over the creation of their own aircraft. One of the results of this hobby was the ornithopter, a device devised by da Vinci, who theoretically could lift a person into the air like a bird. While the Da Vinci parachute would allow a man to jump from the rock and stay alive, the ornithopter would allow her to soar in the air above the ground.
On paper, the ornithopter is more like a bird (or bat) than modern aircraft. His wings will begin to work after the pilot turns the handle. This invention demonstrates a deep understanding of Da Vinci's aerodynamics. Modern attempts to recreate the ornithopter showed that he could fly - if he had been raised in the air. It would be more difficult to build a flying vehicle that would be used by weak human muscles.

7. Machine gun (shotgun, stutterer)
Da Vinci's machine gun or "33-stem body" was not a machine gun in the modern sense. He could not quickly release bullets from one trunk. But he could give volleys at short intervals, and if he had been built, he would effectively mow up the coming infantry.

8. The mechanism of this machine gun is simple
The mechanism of this machine gun is simple. Da Vinci suggested collecting 11 muskets on a rectangular board, and then fold three such boards into a triangle. Having put the shaft in the middle, one could rotate the whole thing so that one set of 11 guns was shot, while the other two cool and recharge. After that, the whole mechanism turned over and gave another volley. And although Da Vinci constantly emphasized in his notebooks that he hated the war and cursed the cars for murder, he needed money, and he could easily convince many patrons that such cars would help them overcome. your enemies Perhaps it is for the better that none of the cars for the murder, conceived by da Vinci, was built

9. A diving suit
Living in Venice in the late 15th century, Da Vinci developed an idea to reflect the invasions of the ships. It was enough to send men to the bottom of the harbor in diving suits, and there they would simply reveal the bottom of the ships, like cans. Perhaps this idea is not impressive, because at the moment its implementation seems rather simple. But in Da Vinci's time it was unheard of. Devliners Da Vinci could breathe with an underwater bell with air, put on masks with glass holes through which one could see under water. In another version of the concept, divers could breathe with wine bottles filled with air.
In both cases, the men would have carried with themselves bottles that were urinating, so they could remain under water for a very long time. The da Vinci plan could not only be implemented - it was practical! These diving suits were actually created, but the invaders against which they had to be used were successfully killed by the Venetian fleet before it required subterranean sabotage.

10. Armored tank
Working with the Duke of Milan, Lodovico Sforza, da Vinci offered what could have been the crown of his creation in the field of military cars: an armored tank. With the help of eight strong men, an armored tank looked like a turtle, which was drunk by 36 guns from all sides. It was equipped with a system of gear wheels that made the sequence. Eight people were protected from the battle by the outer shell, so they could carry the walk of such a "hedgehog" directly into the thick of the battle, without being injured. Shooting in all directions the weapons from an armored tank could become disastrous for a rival squad.

11. The scheme of an armored tank in the notes of Da Vinci contains an interesting disadvantage: the wheels for moving forward spun in the opposite direction from the rear wheels. Constructed in this way, the tank could not move. Yes, Vinci was too clever enough to allow such a crappy error, so historians have given several reasons why the inventor made such a mistake consciously. Perhaps he really did not want this car to be built. Another option - he was afraid that the scheme would fall into the paws of enemies, so made a mistake to make sure that nobody else can build a tank.