6 INVENTIONS THAT CHANGED MANKIND

Google trends each year shows the most popular search engine queries and top trending topics. The top results are always based on recent discoveries, inventions and big things that ‘people are talking about. Just like those here are some of the greatest inventions in history which changed the human lifestyle. Here we will talk about why-when-who created these inventions.

WHEEL

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Well, there are various uses of a wheel from landing an aeroplane to driving a rover on the moon. There are also many other uses of a wheel-like using it in an analogue clock or using it as a pulley.

It is one of the components of simple machines. It is a round disc-like structure fixed at a point with an axle. Well, it is said that the wheel was even used at around 3500BC in Mesopotamia but it is a mystery who invented it, all we know is that the wheel was invented by Sumerian people in the 4th century BC and later on the discs began to be hollowed to make them lighter.

There are many inventions that were inspired by the nature itself like the idea of the table fork came from forked sticks and the idea for aeroplane emerged from the gliding birds but the wheel is the invention that can be said as pure innovation though there are hunches that the idea for the wheel came from cylindrical logs, which were often used to slide the ships into the water.

GUNPOWDER

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“Gunpowder” also known as black powder is the first-ever developed chemical explosive. This black powder is the mixture of sulfur (S), carbon (C), and potassium nitrate (saltpetre, KNO3) but the Sulfur and Carbon are present in the form of Charcoal.

Well the working of gunpowder is simple as the carbon present in it should draw the oxygen from the air but the Saltpetre provides the oxygen, now when the powder is ignited the Sulfur present ignites and raises the temperature tearing the nitrate molecule which releases the Oxygen and leads to combustion.

There are a variety of uses for gunpowder like using for mining, firearms, rocketry etc. Gun Powder was invented in China during the 9th century and it is even listed among the top 4 inventions of China. It is said that the Gun Powder was invented in the 9th century but the recorded chemical formula for gunpowder dates to the Song dynasty (11th century).

Gunpowder was thought to be a monopoly in China till the 13th century as Science was passed through the Silk Route to Europe and middle Islamic countries it became a deciding factor in many wars.

ARPANET

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Many people don’t know about ARPANET OR Advanced Research Projects Agency Network as it was the early stage of the Internet. 

The purpose of the ARPANET was to communicate and share data with other computers specially for scientific uses.

The idea for ARPANET was introduced in 1967 under the direction of the U.S. Advanced Research Projects Agency (ARPA) but the idea came to reality in 1969 when 4 university computers were interconnected.

The idea of ARPANET was based on sending data in small amounts called “packets” that could be stored and sent to different paths.

In 1974 the first ISP(Internet Service Provider) was formed named Telenet. Then in the year 1991, the World Wide Web was introduced to the world by CERN. In 1994 Netscape Communications was born and Microsoft created a Web browser for Windows 95.

ELECTRIC BATTERY

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A battery is a group of cells that provides electric power. The battery was first invented in the 1800s by Italian physicist Alessandro Volta. He stacked discs of copper (Cu) and zinc (Zn) separated by cloth soaked in salty water turning it into a cell.

Batteries are used in almost every electrical appliance from a Tesla to a cell phone and come in every size. When it comes to the working of batteries it is a trick way to explain because there are a variety of cells with a different types of functioning.

The only thing that is common in batteries is that when a chemical reaction takes place some extra electrons are produced which results in electric current.

ALLOY

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An alloy is a composition of 2 or more metals or non-metals. There are a variety of alloys with different properties. Some of the commonly known alloys are brass (copper and zinc), bronze (copper and tin), Gunmetal and Stainless Steel.

Bronze was the first alloy to be discovered during the prehistoric era also known as the bronze age. At that time it was used to make tools as it was harder than copper but as science developed new alloys were formed with better properties.

There are various uses of alloys like-

-Magnalium is used for aircraft parts due to its lightweight property.

-Jewellery gold is used for making the Jewellery as it is harder than pure Gold.

-Solder is used for sealing pipes and connecting electronic parts as it has a low melting point and is a good conductor of electricity.

-Stainless Steel is an alloy of Iron, Nickle, Carbon and Chromium which makes it stronger and anti corrode.

COMPUTER

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A computer is a device programmed to carry out various tasks like storing, processing and displaying. Surely ARPANET would be of no use without a computer.

The concept of the computer was given in the year 1822 by a mathematician named Charles Babbage and a century after the Idea came into existence. Later he was known as the father of the computer.

In the year 1971, the idea of the floppy disk came into existence leading to share data among other computers.

In the year 1974 various personal computers were launched including 

 Scelbi & Mark-8 Altair, IBM 5100, Radio Shack’s TRS-80 — affectionately known as the “Trash 80” — and the Commodore PET as the science and technology has developed the computers have become portable and powerful.

Google trends each year shows the most popular search engine queries and top trending topics. The top results are always based on recent discoveries, inventions and big things that ‘people are talking about. Just like those here are some of the greatest inventions in history which changed the human lifestyle. Here we will talk about why-when-who created these inventions.

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