Top 10 inventions that change the world,दुनिया को बदलने वाले शीर्ष 10 आविष्कार

Top 10 inventions that changed the world

{From the printing press to the internet, some of the life-changing Inventions}

Many inventions have changed the world in entirely different ways. The internet and telephone enabled people to communicate on a global scale instantaneously for the very first time. Similarly, Touch screens and televisions have let people receive and navigate information in whole new ways, while the Wright bros’ plane and steam engines paved the way for transportation to become easy, quick and efficient. So here you can find ten of the most incredible inventions that have, without a doubt, changed the world that we live in and the way that we live our lives.

GPS (1973):-

                          In the seventies, the US military asked Americans Evan Getting and Professor Bradford Parkinson to design the first GPS system so that they could fire missiles accurately and avoid the risk of attack. His proposal was a network of radio transmitters, each with a built-in clock. These would be nuclear clocks, allowing each satellite to get an accurate measurement of time. Each missile had a radio emitter and receiver, and by firing the signals on the satellites they were able to measure how long it took them to go back and indicate their location. This is the basis of GPS today. The first GPS satellites were launched by the US Army in 1978, but public access was denied until the early nineties. GPS satellites orbit 0120,200 kilometers (12,500 mi) above the surface, providing them cover at all times. Originally there were i8 satellites ally in 979 and then 24 in 1988, three of which were on standby as replacements, but the number is now closer to 30.

The Internet and (1960s & 1989):--

                Although some firms had local networks in the sixties, there was no host-to-host connection until 1969, when the US Department of Defense's Advanced Research Projects Agency (ARPA) created ARPANET. The first data exchange on this network resulted in computers crashing when researchers simply tried to send the letter 'G'. However, it soon ran on four computers across the US. While the Internet was functioning, and spreading, by the seventies and eighties, it was nothing like what we know today. It focuses on the backbone of the operation of the computer, which the user will not see. In the late-eighties, a researcher at CERN, Tim Berners-Lee and his colleagues developed a system through which users of the Internet would be able to access text-based 'pages', which would later be used as websites (the World Wide Web ) Will become. . Their system included the use of Hyper Text Transfer Protocol (HTTP), which allowed communication between network servers and computers. He developed an early web browser, which allowed users to navigate to these text pages, which was released to the public in 1992. The first 'point and click' graphical interface browser came a year later from Mark Andreessen (co-founder of Netscape). University of Illinois, and was called Mosaic.               

Additional info

Atomic Watches

A major contribution of the GPS invention was the advancement of atomic clocks. Providing accuracy within one billionth of a second, they allowed satellites to accurately track and relay information over and over the earth, providing pinpoint locations for various devices.

What is plastic

A plastic is a material that can be brought back to its original shape without being molded to almost any shape or easily broken like rubber or clay respectively. Plastics are polymers, a collection of chemical links known as monomers (meaning poly 'meaning many).

Johannes Gutenberg

Johannes Gutenberg is considered the father of the printing revolution and the inventor of the printing press. A German blacksmith and goldsmith, Gutenberg designed a complete printing system around 1439 based on the idea of ​​moving type. By creating type heads in hand molds and then moving them in order of words, Gutenberg's machine could ink-press paper on them, which was the primary method of production at the time, compared to hand copying.

Central processing unit

A general-purpose computer is defined by the presence of a CPU (central processing unit) to hold instructions, memory instructions, and certain types of inputs and outputs. This basic architecture is called von Neumann architecture after the Hungarian-American mathematician John von Neumann (1903–1957). In 1945, he presented a program to the US Army, proposing a general purpose computing machine with the ability to store programs. His proposal was based on the idea of ​​a universal Turing machine developed by Turing. The computer was EDVAC (Electronic Disable Variable Automatic Computer), one of the earliest general-purpose computers to run its first program in 1951. In modem computers, the CPU is contained on a semiconductor chip called a microprocessor.

For part one-click here

For part two—click here