Top 10 geniuses with the greatest inventions in history

Throughout history there have been many genius scientists with many inventions that played an important role in the development of mankind.

The world's most important inventors

1. Leonardo Da Vinci

It can be said that this is one of the greatest minds in human history, with many futuristic ideas, far beyond the technological capabilities and understanding of people at that time, such as helicopters, submarines, tanks, parachutes, computers.

However, many of Da Vinci's ideas remained only sketches and descriptions meticulously recorded on paper and were not turned into practical inventions because the technology at that time did not allow it.

2. Edwin Land

Although Edwin Land did not invent the camera or the art of photography, he perfected every technique surrounding photography through his brilliant inventions.

As a freshman at Harvard, Land created a polarizing filter for photography that produced a deeper blue in the sky and eliminated reflections from water and glass. He later, along with other scientists, applied the polarizing filter to various fields of science and art, and created the world-famous instant camera.

3. Benjamin Franklin

Not only was Benjamin Franklin an outstanding politician, he was also very talented and very good in many different fields, especially science and technology. He was the one who invented many famous items, such as lightning rods, catheters, flippers, bifocals, glass harmonicas, etc.

However, Franklin never applied for patents for his inventions, believing that his inventions should be widely shared for everyone to use, just as he himself had benefited greatly from the inventions of his predecessors.

4. Hero of Alexandria

Hero was the first to invent the vending machine (although its purpose at that time was only to sell holy water), the wind-powered organ, the water pump, the syringe, the fountain, and laid the foundation for the later invention of the thermometer.

However, Hero did not attach much importance to his inventions and did not improve them further, perhaps he did not expect that they would play such an important role many centuries later. For example, when he invented the first steam engine, Hero simply used it to open and close the temple doors. If he had been more ambitious, the industrial revolution might have happened 2 centuries earlier.

5. Jerome "Jerry" Hal Lemelson

During his lifetime, Lemelson owned 605 patents. He invented many important items, such as: automatic warehouses, industrial robots, cordless phones, fax machines, video recorders, camcorders, video tapes and cassettes.

In addition, Lemelson also has many notable inventions in the fields of medicine, cancer detection and treatment, diamond coating applications, electronics and television.

6. George Westinghouse

Westinghouse was one of the leaders in the 19th century electrical industry with many important inventions. He was also the one who promoted the use of alternating current, which made him a rival to Thomas Edison, who advocated the use of direct current.

In addition, Westinghouse also invented the air brake, one of the very important contributions to transportation, especially railway transportation.

7. Alexander Graham Bell

Alexander Graham Bell was the man who invented the world's first telephone, a result of months of hard work in the hope of finding a cure for his mother's deafness, although his telephone was only born out of an unintentional mistake.

In addition, Bell also invented the metal detector, ice locator, ship lift device, hearing test device for the deaf.

8. Thomas Edison

Contrary to popular belief, Edison did not invent the light bulb, but rather completed the idea of ​​previous inventors, put it into practice, and commercialized it by mass producing it and selling it to households. Thanks to that, we have electric lights like today.

Other famous inventions include the double telegraph (which could send two messages at once), which was later improved to triple, quadruple, and multiple-transmission telegraphs. Later, the phonograph brought him fame. In total, Edison held 1,500 patents worldwide.

9. Nikola Tesla

Tesla was a man who made many revolutionary contributions to the fields of electricity and magnetism. His theoretical work and inventions of alternating current power generation systems and the alternating current electric motor were the foundation for the second industrial revolution.

Not only that, he also contributed a lot to the fields of robotics, remote control, radar, computer science, nuclear physics, theoretical physics and ballistics. In his youth, he worked for Thomas Edison's company and helped improve many of Edison's outdated machines. However, due to disagreements on the use of alternating current, he quit his job. At the end of his life, he died alone and poor, his unbelievable ideas made him called a mad scientist.

10. Archimedes of Syracuse

Archimedes is the worst nightmare of every student in the world because he is the one who calculated the exact value of pi, proved a series of theorems in geometry, calculus and analysis, created a system using exponentiation.

Not stopping there, Archimedes also invented many types of machines and weapons to protect his homeland, the most famous of which was the use of solar lenses to burn enemy ships.

The most famous story about Archimedes is that he figured out how to calculate the volume of an irregularly shaped object (a golden crown in the shape of a laurel wreath) while sitting in a bath. Excited by his discovery, he jumped out of the bath and ran naked through the streets shouting 'Eureka ! Eureka!' (I found it!).

•