Who Invented the Microwave?

Who Invented the Microwave?...

One of the fastest, most convenient and easiest ways to cook, the microwave or microwave oven is widely used in many households today. Through dielectric heating, this kitchen appliance can efficiently cook or heat various kinds of food. With the aid of radiation, it is possible to heat polarized molecules as well as water. Aside from its important principles and aspects, it is also good to know the history of this cooking equipment including who invented the microwave. The Invention of the Microwave Who invented the microwave? An engineer named Percy Spencer accidentally discovered the use of microwaves to cook food. In happened some time in the 1940s, when he was trying to build radar sets for the commercial electronics manufacturer Raytheon. He noticed that the chocolate bar situated right inside his pocket melted because of the microwaves that were present in the area where he was working. Thereafter, he went on to experiment and tried to cook popcorn. Next, he and his associates tried to cook an egg, which eventually exploded right in the face of one of them. After that, he and his crew experimented on a metal box, which they fed with microwave power. It became a high-density electromagnetic field, which allowed the food temperature to rise quickly. Raytheon decided to file a patent for Spencer’s invention on October 8, 1945. The kitchen appliance was tested for some time in a restaurant in Boston, Massachusetts. After that, Raytheon decided to build the very first microwave oven called the Radarange. Additional Facts and Other Interesting Information The earlier models of the microwave were big and quite expensive. A basic unit usually measured 1.8 meters or 6 feet tall. Meanwhile, the approximate weight of every product was 340...
Who Invented Atari?

Who Invented Atari?

The history of Atari began in 1972 when the company was founded by Nolan Bushnell and his associate Ted Dabney. Originally the firm was called Syzygy but Bushnell later changed it to Atari. Beginnings and Early Success A year before the company was founded Bushnell hired Al Alcorn to recreate the Odyssey game Tennis for Two. The result was Pong. When the game was released in 1972, it became a huge hit. The Atari Company was founded that same year (the word Atari means go in Japanese. Sometimes it is also translated as to hit the target). The success of Pong (150,000 copies sold) marked a significant turning point in the history of Atari. In 1975, Bushnell sold the company to Warner Communications. It was under Warner that the gaming platform attained success. The Atari 2600 was so popular the sales made up a third of Warner’s profit for the first few years. In 1980 the Atari home video system made nearly half a billion dollars in sales. The 1983 Crash In 1983 sales of video games plummeted in the United States. Atari losses amounted to over $550 million. The following year Warner handed over Atari to Jack Tramiel (former head of Commodore). The Atari St came out and sales peaked at $25 million in 1986. Struggles The next stage in the history of Atari involved its struggles with rival Nintendo. Their rival was winning market share so Atari worked on the Lynx system. It was a handheld console complete with color. The Lynx sold poorly for two reasons. Number one, shortage of components prevented it from being released during the 1989 holiday season. Second it cost twice as much as the Nintendo Game Boy. Tramiel had also stressed...
Who Invented the Alkaline Battery?

Who Invented the Alkaline Battery?...

An alkaline battery is a kind of a rechargeable battery or disposable battery that is dependent on the reaction between the compound manganese oxide and the element zinc. Many consumers prefer to use alkaline batteries over zinc-carbon batteries because alkaline batteries have longer shelf life as well as higher energy density. One of the most important materials used in the development of the batteries is the alkaline electrolyte of potassium hydroxide. Before we proceed with the characteristics of the battery, let us look at its history, including the person behind the invention of the alkaline battery. Historical Background Who invented the alkaline battery? The first alkaline battery was invented by one of the scientists of Energizer, Lewis Frederick Urry, in 1959. The prototype battery developed by Urry was displayed at the Smithsonian National Museum of History. In order to prove the durability of the battery, Urry installed the alkaline battery in a toy car and a zinc-carbon battery in another toy car. He raced the cars around a room. As expected, the toy car with the zinc-carbon battery was the first to stop. With the desire of the company to limit the use of mercury in batteries, it introduced the AAAA alkaline battery in 1989. Additional Information and Other Important Details An alkaline battery has a nominal voltage of 1.5 volts. To attain multiple voltages, it is important to make a series of alkaline batteries. When the battery was discharged, the zero-load voltage may vary from 1.5 volts to 1.65 volts. The voltage depends on the level of zinc oxide and manganese oxide in the electrolyte. Almost all alkaline batteries can be recharged. However, to do this successfully, there are some pointers to know. The first thing one should...
Who Invented the Elevator?

Who Invented the Elevator?...

Elevators make it possible to build skyscrapers even with a hundred floors or more. It must have been tough inventing something like that. But like other invented things, they started out simple—as a platform pulled manually. Who invented the elevator in primitive times, then? The first Inventor Elevators or lifts were used in ancient times. Historical records say they were used as early as the third century B.C. The first elevator inventor used raw human power to pull huge objects as blocks of stone using a pulley. There is no record of the man or men who invented the elevator that time, but sure enough the mechanical equipment was already in use then. Otis the Egyptian Egypt is among the first civilizations recorded to have been engaged in large-scale construction. An Egyptian probably was the one who invented the elevator. Otis was an Egyptian servant of Queen Elizabeth. He was said to be the one who invented the elevator. It was pulled using men or animals. Where water was available, water wheel was used. Archimedes’ Box Archimedes also built lifts for moving heavy objects up and down. But his were boxes, not just platforms. They were in popular use in the Middle Ages. Then in the time of King Louis XIV, the boxes were re-designed to carry people. Who specifically re-designed them was not mentioned, so Archimedes still could not be the one who invented the elevator for people. Otis the American In the 19th century Elisha Graves Otis introduced power elevators with safety brakes. Elevators then were powered by steam, which was a major breakthrough from the traditional manual operation. However, they were deemed unsafe due to cables that were susceptible to breakage. So Otis introduced something better:...
Who Invented the Cell Phone?

Who Invented the Cell Phone?...

The mobile or cell phone was invented by Martin Cooper in 1973. The history of the cell phone shows that Nathan Stubblefield had a patent in 1908. However the patent was for cave radio phones and not the mobile device as we know it today. Early History As stated, Stubblefield’s patent was for cave radio telephones, as the device was known then. The mobile phone’s origin can be traced back to the 1940s. Bell Labs had already made some mobile base stations. These were refined in the 1960s but they were mainly for radio telephony. The main users of radio telephony during those days were the military. These hand held radio gadgets had been patented in 1969 to George Sweigert. The history of the cell phone began in 1945 and these early phones are now called zero generation phones. It consisted of a solitary base that would cover a specific spot and had very limited coverage. First Generation Phones Cooper’s invention was patented on October 17, 1973. the first phone call was made by Cooper months before he applied for the patent, on April 3, 1973. He made the call to Dr. Joel Engel, a researcher at AT&T’s Bell Labs. Cooper was working at Motorola at the time, and the call was made with several media people present. Soon after, companies started making cellular networks. Although the telephone was still dominant, other companies started coming out with cell phones, although they were still large and heavy. Second Generation Phones The next stage in the history of the cell phone was the development of 2G (second generation) phones. Among the earliest 2G phone systems were GSM, IDEN, and IS-95. GSM networks started appearing in 1991 (specifically in Finland). Compared with...
Who Invented the Light Bulb?

Who Invented the Light Bulb?...

When asked who invented the light bulb there are those who quickly answer that it was Thomas Edison. Unfortunately it was not Edison who invented the light bulb since there are at least 22 others who have invented something that resembles something like it. There were actually others who had come up with the idea to generate light from electricity. Comparing Edison Thomas Edison’s invention may not be the first but it is one that far exceeds many of the earlier inventions. It is noted that Edison did not just create a new type of light bulb he also created an integrated lighting system. Origin As early as the 1800’s there have been inventors who have tried to convert electricity and produce light. Sir Humphry Davy was one who was a bit successful. He was an English physician who was able to pass an electric current through strips of platinum. The only drawback with his experiments was that the platinum strips dissipated rather quickly and he was unable to create light. He then created the Arc lamp in 1809. He was able to make an electrical connection among a couple of charcoal rods that were connected to a battery. The light was quite bright however it was small as well. Though we can not credit Sir Humphry Davy as the one who invented the light bulb he did add to its development. Further Developments The next 50 years after Davy’s success will bring up others who would strive to lengthen the life of the light produced from electricity. A notable inventor is Warren de la Rue who was able to make a more efficient design. He used a platinum coil in a vacuum tube that produced light a lot...
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