Who Invented Pi?

Who Invented Pi?

Based on historical facts about pi, the Egyptians were the first to discover and use it. The Great Pyramid measured 1760 cubits with a height of 280 cubits. The equation 1760/280 is equal 2 x pi. Note that this is archaeological evidence; there are no specific Egyptian texts that specifically mention pi. An Overview of Pi History The history of the pi is usually divided into three eras. The ancient period was the time it was studied in geometric terms. The classic era took place in 17th Europe following the invention of calculus. The current one is the digital period, where computers are used to analyze and compute the data. The Susa math tablets (c 2000 BC) can shed light on some facts about pi. These were set down in cuneiform and discovered in Shush, Iran. There it is said that the ratio of the circumference of a circle compared to a hexagonal perimeter is 1:0.96. This is taken by some experts as a pi=3.125. Most of the ancient civilizations located an area by multiplying a square of the circumference by 1/12. The Ahmes Papyrus While no Egyptian texts state their use of pi, some math experts suggest otherwise. The Ahmes papyrus (or Rind papyrus) seem to indicate some awareness on their part. It was composed around 1820 BC. It is mostly concerned with problems about locating the circle’s area from the diameter. When studying the facts about pi, it is about multiplying the diameter by 8/9. This is the p/4. From the text in the papyrus, the value is at least p= (256/81) =3.1605. The Moscow Papyrus There is another Egyptian papyrus called the Moscow papyrus (where it is kept). It deals with mathematical problems. One problem is...
Who Invented the Toaster?

Who Invented the Toaster?...

The toaster is a very reliable kitchen appliance used for toasting various kinds of bread. With the help of this electric device, you can easily enjoy nice tasting bread anytime you want. Today, toasters are classified into three major varieties, namely conveyors, ovens and pop-up toasters. It is good to find out more about this useful electric appliance including who invented the toaster. The Invention of the Toaster Who invented the toaster? George Schneider, who once worked for the American Electrical Heater Co. in Detroit, was the very first to apply for an electronic toaster patent application in the United States, which happened some time around 1893 to 1900. In 1909, General Electric applied a patent for its GE model D-12, which became the very first successful commercial electronic toaster. Its design was credited to a technician named Frank Shailor. Additional Facts and Other Important Information In 1913, a major advancement in electronic toasters took place when American inventor Lloyd Groff Copeman applied a number of patents for his creation. His invention allowed both sides of a bread to toast even without touching it. Aside from this breakthrough, he was also credited for inventing the very first ice cube tray made from rubber as well as the electric stove. After that, toasters received another improvement when the semi-automatic variant was launched. This product automatically turned off once the bread toasted. In 1921, American inventor Charles Strite came up with the very first automatic pop-up toaster. Unlike earlier models, the toasted bread ejects automatically. After that, the Waters Genter Co. launched the Model 1-A-1 Toastmaster in 1925, which toasted both sides of the bread simultaneously. By 1946, ultramodern chrome designs were launched. In 1950, product models like the T-50, T-35...
Who Invented Legos?

Who Invented Legos?

Manufactured and designed by the Lego Group, Legos are comprised of toy bricks that are fun to play because they offer seemingly endless possibilities. By playing them, it is possible to build almost anything including houses, vehicles and even robots. In addition, there are Lego sets designed to make buildings, animals and air transport vehicles. These toys not only develop the creativity of both children and adults alike, but also their power of imagination. Find out more about these products including who invented Legos. The Invention of Legos Who invented Legos? Ole Kirk Christiansen conceptualized and invented the idea of Lego bricks. He came from a poor family and worked as a carpenter. In 1932, he started to produce toys made out of wood. He considered it as his job during that time. From these materials, he was able to construct miniature furniture and houses. By 1934, his company was already addressed as Lego. Some time in 1947, he decided to use plastic in making toys. In 1949, Christiansen had already made a total 200 wooden and plastic toys. In that same year, his company started to manufacture toys called automatic binding bricks, which were comprised of interlocking bricks. Additional Facts and Other Interesting Information Christiansen named his company Lego, which was derived from the Danish phrase ‘leg godt,’ the meaning of which is to ‘play well.’ He also emphasized on his employees the importance of quality. In 1954, his son Godtfred Kirk Christiansen assumed the position as Lego Group junior managing director. He was credited for introducing Lego bricks as a more enjoyable and fun toy system. In January 1958, the patent for the modern version of Lego bricks was approved. Today, the Lego Group has progressed even...
Who Invented Hip Hop?

Who Invented Hip Hop?

In the 1970s, hip hop emerged as a cultural movement among Latino Americans and African Americans who were living in the City of New York. Its popularity reached greater heights in the early parts of 2000s. Despite its decline in the latter parts of the decade, it remains one of the highly influential cultures today. Here is a closer look at what this culture is really all about including who invented hip hop. The Invention of Hip Hop Who invented hip hop? After he outlined the five fundamental aspects of the hip hop culture, many people referred to DJ Afrika Bambaataa as the pioneer and inventor of this highly influential social movement. According to him, the pillars of this culture are knowledge, graffiti writing, breaking, DJing and MCing. In addition, there are other key elements such as slang, hip hop fashion and beatboxing. Another influential figure in the culture’s development was DJ Clive Campbell, also known as Kool Herc. He introduced the Jamaican tradition referred to as toasting, which he used to create one of the most important foundations of hip hop. Toasting is primarily the act of making impromptu sayings and poetry while a certain musical beat is being played. Additional Facts and Other Important Information Hip hop received a much-needed media attention in the closing parts of the 1970s. By 1982, American hip hop ensemble the Soulsonic Force, a member of which is Afrika Bambaataa, released the music single entitled “Planet Rock.” That particular single was characterized by electro-funk music, which made use of key factors such as improved synthesizer technology as well as enhanced drum machine. After that, the music video of “Planet Rock” was released, which greatly advertised the beautiful aspects of hip hop. This...
Who Invented the Hamburger?

Who Invented the Hamburger?...

Hamburger is a special and popular sandwich that has a meat patty placed between two bread slices or a bun. To improve the flavor of the sandwich, some people add other ingredients like cheese, pickles, onion, tomato as well as lettuce. Others also add condiments such as ketchup, mayonnaise and mustard. According to reports, the term was derived from Hamburg, a German town. In order to know more about the history of this sandwich, it is important to start with identifying the person behind the invention of the hamburger. History of the Sandwich Who invented the hamburger? Several reports claim that the sandwich was invented by Ohioans Charles Menches and Frank Menches. Based on the obituary of Frank Menches, he and his brother invented the sandwich when the stocks of sausages ran out at their food store at the Summit County Fair in 1892. Instead of sausages, they use beef patty for their sandwiches. They also name the sandwiches after the place where the fair was held, Hamburg, New York. Another report stated that Charlie Nagreen from Seymour, Wisconsin invented the hamburger. According to the Seymour Community Historical Society, he was only 15 when he prepared sandwiches with meatballs and offered these at the Outagamie County Fair in 1885. The historical society also reported that the sandwiches were named after Hamburg steak. The government of Connecticut together with the Library of Congress agreed that Louis Lunch owner Louis Lassen invented hamburger. The first hamburger was sold in 1895 by Lassen. A report by the New York magazine stated that the sandwich does not have a name until a traveler from Hamburg, Germany, named it after the place where he lived. Frank X. Tolbert, a historian from Texas, attributed the...
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