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Paper is a thin, non-woven material historically crafted from a mixture of floor flowers and fabric fibers. The first plant-primarily based totally paper-primarily based totally writing paper changed into Egyptian papyrus, however the first actual paper, and the primary actual papermaking system, is documented in China throughout the Eastern Han Dynasty (25-220 AD).
Produced through pulp and paper generators, this organization of vegetable paste changed into utilized in writing, portray and currency. In the eighth century AD, Chinese papermaking unfold to the Islamic global and changed papyrus. In the eleventh century, papermaking changed into added to Europe, changing parchment and timber forums of animal skins. By the thirteenth century, papermaking changed into stepped forward in Spain the usage of paper generators with water wheels. In Europe withinside the nineteenth century, with the discovery of wood-primarily based totally paper, the papermaking system changed into later stepped forward.

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Create a new document and edit with others at the same time -- from your computer, phone or tablet. Get stuff done with or without an internet connection. Use Docs to edit Word files. Free from Google.

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The iPhone announced on January 9th, 2007 and launched on June 29th, 2007, was a revolutionary device that reinvented the phone as everyone knew.

The innovation that made the iPhone was his display.

Phones before 2007 had a lot of buttons that Steve Jobs said weren't intuitive and hard to use. So it took all of the buttons and made a giant screen.

The iPhone only had one button called the home button that allowed the app to exit to the home screen.

The iPhone had a new technology called multi-touch that allowed a smooth usability, and the capability to use finger gestures with more than one finger, like: Pinching to zoom in and out, scrolling through webpages, etc…

It also had an more interactive user interface more known as the Operating System (OS)
It had a weather app to look at the weather, a calendar, a compass app, a music app, etc…

The iPhone was developed for 2 and a half years before it was officially released to the public.

Although it was revolutionary, it wasn't a very big hit, as the iPhone was only released in 5 countries and the starting price in the range of 500 dollars, that for a phone at the time it was a lot of money.

Now a days the iPhone is all around the world and it completely reinvented the way that we use our smartphones.

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N escrevam aqui

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Kaboom

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Electricity was an invention that completely revolutionized our lives. Today, we can't live without it. But it wasn’t always like this.
Electricity dates back to the VI century when Tales de Mileto, a Greek philosopher, was observing a resin that, when rubbed with fur and wool, attracted small objects.
Throughout the XVII and XVIII there were many experiments and studies that helped discover more knowledge.
For example, in 1730, the English physicist, Stephen Gray, observed that some materials conduct electricity better than others. The concept of  electric conductors and electric isolators was born.
Charles Dufay, a french chemist, also contribuided for this studies when, in 1733 he theorized that there are two types of electricity , vítrea e resinosa.
This theory was continued by Benjamin Franklin. He proposed those fluids were actually one fluid. Based on that theory, the terms positive and negative in electricity were born.
This knowledge made our lives full of gadgets and technology that uses electricity.

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A nuclear bomb is an explosive device that derives its destructive force from nuclear reactions , either fission (known as an atomic bomb) or a combination of fission and fusion (known as a thermonuclear bomb). Both reactions release large amounts of energy from relatively small amounts of matter.

Nuclear weapons are considered weapons of mass destruction and their use and control have been one of the main focuses of theinternational relations since its inception.

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A modern thermonuclear weapon, weighing just over 1.1 kilograms, can produce an explosive force equivalent to the detonation of over 1.2 million tons of TNT. Thus, even a small nuclear device not much larger than traditional bombs, can devastate an entire city through the gigantic explosion and by subsequent fires and radiation .

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In the late 30's, physicists in Europe and the United States of America realized that, in theory, the fission of uranium could be used to create an extremely powerful explosive weapon. (This was an tremendous error)

In August 1939, the physicist Albert
Einstein sent a letter to the American president Franklin D. Roosevelt, clarifying him about these potentialities but, at the same time, alerting him to the possibility of other nations developing this project, namely the Nazi Germans.

The case was analyzed and explored at length by the US Government until, in 1942, the ultra-secret Manhattan Project was launched, under the direction of Brigadier Leslie Groves.

AND THIS IS HOW THE NUCLEAR TIMES STARTEEEEEEDDDDD!!!!!!!!

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For centuries, we have tried to find ways to protect the human kind from deadly diseases.
Vaccine’s story is extensivet . It started with numerous experiments, since the 15th century, and it ended up spreadind all over the world, saving more humam lives than any other medical invention in history.

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Nowadays, you can go to any store and buy a pen, but it wasn’t always like this. In our History someone had to come up with this idea and waste time, money and resources to develop this simple yet crucial item. It all began in the year 3000 b.C. when the ancient egyptians discovered reed by the riverside of the Nile. They thought of sharpening the reed and dipping it in toner in order to create a writing mechanism. Little did they know that they had created one of the most important items used today. By the 6th century, they thought that the Egyptian pen was outdated. So they started using a specific type of feather as an instrument of writing, which was more flexible and light. This pen still needed to be sharpened, usually with a knife and constantly dipped in the toner. Later on, with the creation of the press, this item became a way of expressing thoughts and feelings. This originated a development in society allowing boys and girls to learn how to write and express themselves. At the end of the XVIII century the feather tip was replaced with metal tips. The only problem was that it was a lot heavier than the feather even though a lot more resistant. In 1827, Petrache Poenaru invented the toner pen, which was a development of the old pen. With this new invention it wasn’t necessary to constantly dip it in paint, however the item still needed some adjustments. It was in 1884 when Lewis Edson had a terrible accident at work that he created the toner pen with three canals. He was closing a deal with a customer and suddenly, a splash of paint flew out his pen smudging the important document. Not wanting to waste time, the client switched to his competition. This incident made him upset and wanting to create an item where these types of incidents wouldn’t happen again. This item became a huge success among the population. It was a brilliant and useful invention but it still needed improvements like not needing to dip in paint. This improvement only came in 1938 by László Bíró. It consisted of putting paint inside a plastic tube inserted inside the pen then the paint would descend to the tip of the pen by the force of gravity. This pen was called ball-point pen due to the little sphere in the tip that distributes the paint evenly throughout the page. The pen turned out to be a huge development not only in the writing industry but also in the technological field. Nowadays, this pen is mass-produced and sold all around the globe.

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Only two nuclear weapons have been used during a war: when the United States bombed two Japanese cities at the end of World War II . On August 6, 1945, a uranium fission bomb code-named " Little Boy " was detonated over the Japanese city of Hiroshima . Three days later, on August 9, a type of plutonium fission bomb , codenamed " Fat Man ", exploded over the city of Nagasaki , Japan .. These two attacks resulted in the deaths of around 200,000 people — mostly civilians — from serious injuries from the explosions and radiation. [ 1 ] The role of nuclear bombing in Japan's surrender and whether its use was ethical are still issues that continue to be the subject of discussion today.

Japan created its own program for the development of nuclear weapons, but even though its nuclear physicists were as capable as those of the West, [ 2 ] various difficulties impeded the progress of the Japanese nuclear weapons program .

After the bombings of Hiroshima and Nagasaki, nuclear weapons were detonated on more than two thousand occasions during tests and demonstrations . Only a few nations possess such weapons or are suspected of having them. The only countries known to have detonated nuclear weapons and who are recognized to have such weapons are (in chronological order, according to the date of the first test): United States, Soviet Union ( succeeded as a nuclear power by Russia ), United Kingdom , France , People's Republic of China , India , Pakistan andNorth Korea . Furthermore, it is almost agreed that Israel also possesses nuclear weapons, although the Israeli government does not recognize this. [ 3 ] [ 4 ] [ note 2 ] Only one country, South Africa , manufactured nuclear weapons in the past, but dismantled its entire arsenal after the end of the apartheid regime , when the country joined the Non-Proliferation Treaty ( NPT ) and fully accepted international safeguards. [ 5 ]

According to 2012 estimates , obtained by the Federation of American Scientists , there are more than 17,000 nuclear warheads in the world, with about 4,300 of them considered "operational", that is, ready for use. [ 3 ]

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I still remember when I first saw this amazing, spetacular, cool and stylish pair of shoes. It was every kids dream!
This genial invention was created do to the drastic decrease of the sells by the shoe manufacturers and some companies. They knew that the shoes with rollers and the shoes with leds were very famous among the kids and their colors and designs were very "atractive" too. This happened in 2016 after the sells have decreased 16% from January to October, comparing too 2015 (due Abicalçados [Associação Brasileira das Indústrias de Calçados]).
Ortopé (a companie of shoes in Brazil) invested in this invention and their sells increased 35% last year,2017 because this article was posted in that year, due the manager, Fabio Schmitz. This tought they would sell 200k of this pair of shoes but in the reality they selled 300k (in 2017).
A curiosity is that the first first ideia of this shoe was inspired by the USA because out ther the adults wore those as transport vies . In August, after the Ollympieds the creater posted the led shoes, inspired in the british comite tha used the shoes in the cerimony of closing the Rio2016.

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Medical discoveries and inventions have transformed the lives of various civilizations, making it possible to live much longer and better. But nothing would be possible or bearable if a way to overcome pain wasn’t discovered. To be able to discover this has been a goal for scholars of the medical field since the beginning of ages.

Therefore, it’s not possible to talk about the great inventions of medicine without a generous chapter dedicated to the one who discovered how it was possible to have surgery under the effect of general anesthesia.  It happened in 1846, in the city of Boston, USA, when the American dentist Thomas Green Morton used, for the first time, the ether to perform surgery.

This surgery happened in the surgical amphitheater of Massachusetts General Hospital, and although Morton was a dentist, he attended since he had been the one who devised an ether inhaler device. The artifact was created from Morton's various experiments using inhaled ether to perform painless tooth extractions. Imagining the possibility of pain-free surgery, the dentist requested authorization to try his device in a larger surgery.The patient was a 17-year-old named Gilbert Abbot who had a tumor in his neck. Along with  the surgeon John Collins Warren, Thomas Green Morton, he participated in the surgery, which was considered a success and the first concrete experience of general anesthesia.