Ten inventions that have the greatest impact on human work and life in the world: First place: Leonardo? Da? Finch (Italy)
The most famous invention: the calculator mentioned Da? When Finch and his invention, you'd better ask such a question: "What didn't he invent?" Because he invented so many things. Da? There are many design drawings in Finch's work log, but the most noteworthy one is the design of calculator. Imagine what science would be like without simple and complicated mathematical operations. Da? Finch is the originator of the Renaissance. He can paint (such as the masterpiece Mona Lisa), sculpt and invent. His diary, which has fascinated the whole world so far, depicts many things from human bodies to helicopters and tanks.
the coolest fact: da? Finch's diary is more than 13, pages long and still affects scientific research. In 25, a British surgeon also used da? The method designed by Finch to do heart repair surgery is surprising in itself. Do you know about it? When Finch didn't even have any idea about the working mechanism of the human circulatory system, it was simply a surprise. Second place: Nicholas? Tesla (America), the most famous invention: radio, although Nicholas? Tesla was not recognized during his lifetime, but the US Supreme Court finally affirmed his patent application and confirmed that he, not Marconi, invented the radio. Tesla may have been born to be unconventional. Although a transmission method called "alternating current" invented by him has been applied so far, in fact, his research focuses on the theoretical application of electricity (unfortunately, many research results still stay on the drawing board). It is this Tesla who always makes his own experimental equipment (such as the famous Tesla coil used to collect electric energy) and puts forward a series of viewpoints ranging from X-rays to seismographs.