Who Invented the Digital Camera?

Who Invented the Digital Camera?...

A digital camera is a type of camera that takes photographs or videos with the use of an electronic image sensor. This device has the capacity to display photographs on the screen several seconds after the image has been recorded. Other brands of the cameras can edit the layout, color as well as the entire appearance of the picture. Because of the popularity and wide use of the device, it is incorporated in other devices like mobile phones and PDAs. To learn about the history of the device, it is best to start with the person behind the development of the digital camera. History Who invented the digital camera? This device was first created by Eastman Kodak engineer Steven Sasson in 1975. The camera used a solid state CCD image sensor chips manufactured by Fairchild Semiconductor. The device weighed 3.6 kilograms and it took above 20 seconds to capture an image. This camera was developed as a prototype and it is not intended for mass production. However, this device has the capacity to record black and white pictures. Additionally, the first digital camera has a resolution of 10,000 pixels or 0.01 megapixels. The first digital camera that was introduced to the public is the Fuji DS-1P, which was launched in 1988. The device has a 16 MB internal memory card and it has a battery. The device was not launched in Japan as well as in the United States. The next digital camera that was commercially available is the 1990 Dycam Model 1. It has a CCD image sensor and it can be connected to a computer or a laptop to transfer and store data. Eastman Kodak launched the first professional digital camera named as the Kodak DCS-100 in...
Who Invented the Mars Rover?

Who Invented the Mars Rover?...

The history of the Mars rover will point out their building was a team effort. Each of these rovers was created by a group of scientists working at NASA. Most of the work and development of the spacecraft take place in the Jet Propulsion Laboratory. The Mars Rovers Five Mars rovers have been launched. The first one was launched in 1971 and called Mars 2 Prop M rover. It was followed by the Mars 3 Prop M rover. Both devices failed. The Sojourner rover (Mars Pathfinder) landed on the Red Planet on July 4, 1997. It was able to maintain communication with NASA until September 27, 1997. The Spirit (MER-A) Mars Exploration Rover made it to Mars on January 4, 2004. As of June 2009, the craft was still functioning. The history of the Mars rover continued to evolve with the Opportunity. This craft made it to Mars on January 25, 2004. It was still operating as of July 2009. The Mars Rovers Sojourner and Opportunity The failure of Mars 2 and Mars 3 led to design overhauls. The sojourner left Earth on December 4, 1996. It was able to land successfully because it used a multi celled balloon. This device bounced on the ground and helped reduce the impact of landing. This allowed the craft to land without damaging any components. The Opportunity landed on the Meridani Planum section, the first in the history of the Mars rover. Like the Sojourner and Spirit before it, the rover was able to land successfully without affecting any components. There are now several Mars rovers being developed. These include the Curiosity, the ExoMars and the Tumbleweed. The Curiosity is scheduled to be launched in 2011, and the ExoMars in 2016. There...
Who Invented Plastic?

Who Invented Plastic?

Introduction Plastic is a general word describing synthetic or partly synthetic materials or objects. Plastic comes from a Greek word meaning “can be molded.” It refers to the ability to be molded during manufacture into a different shape. Hence the word “plasticity.” Invention of Plastic The first person who invented plastic was Alexander Parkes, a native of Birmingham, England. He called his work Parkesine after himself. The plastic he invented was organic. It was made from cellulose treated with a solvent and nitric acid. It could be molded into any shape when heated. When it cooled, the Parkesine plastic kept its shape. Parkes showed off his invention to the world in the Great International Exhibition in 1862. His plastic design won the bronze medal. Parkes thought that what he’d invented could replace rubber. But manufacturers soon grew cool to the Parkesine due to the high cost of its raw materials. Celluloid Plastic The next step in the invention of plastic occurred in the United States in the late 19th century. Billiards was getting very popular. Back then ivory was used to make billiard balls. Thousands of elephants were slaughtered only for their ivory tusks. Even back then it was impractical and expensive, not to mention cruel as later animal rights advocates would cry out. Then John Wesley Hyatt came to the rescue. One day as Hyatt was working in his shop, he spilled a bottle of collodion. When it dried, he discovered it was flexible yet strong. Hyatt experimented with his discovery. He found tat collodion by itself wasn’t tough enough for use in billiards. It was much too fragile. But when he added camphor to it, heated and then molded it, it became durable. Hyatt had invented celluloid...
Who Invented the Very First Camera?

Who Invented the Very First Camera?...

The history of the camera is long and complex. Louis-Jacques-Mande Daguerre invented the first photographic device in 1836. George Eastman popularized photographic film in 1885. However, camera like devices appeared years earlier. The Camera Obscura The first known instance of people being aware of photography theory was in 5th century China. A Chinese named Mo Ti observed the following effect. When light rays of an illuminated matter are reflected and go through a dark area, it will produce an inverted but otherwise identical copy. In 1000 AD, Alhazen created the pinhole camera or camera obscura. The history of the camera indicates that the next important discovery was made in 1727. That was when Johann Schulze learned silver nitrate became dim when it was exposed to light. Niepce’s Image Then in 1827, Frenchman Joseph Niepce managed to make a photographic image. He used the camera obscura for this task. Although the device had been around for a while, it was only used for illustration. Niepce called it the sun prints. But they were the descendants of modern photos as they also used light to produce the image. However it took eight hours to produce the image and it eventually faded. Niepce’s experiment was followed by that of Daguerre. Daguerre played an important role in the history of the camera. The daguerreotype method helped preserved images and took less than half an hour to produce the image. A different type of camera called the calotype was invented by William Talbot in 1840. By the 1880s, the success of Daguerre and Talbot spurned on other inventors. When gelatin dry plate was invented, it greatly helped in the quality of the output. As technology improved, cameras of all shapes and sizes started coming...
Who Invented the Telescope?

Who Invented the Telescope?...

The telescope is an indispensable tool for studying and observing the heavenly bodies. Without it, we are blind, literally and figuratively, to the workings of the universe beyond our planet. With its importance, it is then an interesting question to ask: who invented the telescope? Asking the question is not that east to answer primarily because unlike other inventions, the telescope was not designed, developed, and made first by a single individual. Rather it was a tool that was in continuous development in its early years. This is when asking who invented the telescope, it is important to discuss the different people who contributed greatly to its creation. First in the list of the people said to be ones who invented the telescope and/or contributed greatly to its development are Jacob Metius, Hans Lippershey and Zacharias Janssen, Dutch reading glass makers. Because of their proficiency and precision in working with glass and producing lenses, each of them were the able to independently produce working refracting telescopes, at most weeks from each other. Refracting telescopes are the earliest form of telescopes, and they rely on a lens in forming an image. Although all of the three can be considered the pioneers of telescopes, Lippershey is widely credited to be the one who invented the telescope since he was the one who was published first. Galileo is another important figure in the history of the telescope. He greatly improved on the design of the three Dutch inventors and made his own telescopes. Using his improved design, he was bale to do historic scientific works which revolutionized scientific thinking forever. Another revolutionary in the field of science, Isaac Newton, can also be considered as one of the people who invented the telescope...
Who Invented the Chinese Zodiac?

Who Invented the Chinese Zodiac?...

Who Invented the Chinese Zodiac? The Chinese Zodiac is not a “zodiac” at all since it is neither based on the constellations nor is it a division of the ecliptic. Rather it is a way to observe time in cycles. There are no written record so who invented the Chinese Zodiac. However there are many theories about its origin. One story relates that the ancient Chinese used to keep time by the use of ten “heavenly stems” and twelve “earthly branches.” Different combinations of these stems and branches were used to tell the month, year, day and hour. The calculations were too complicated for average folk, so they used common animals to symbolize the time divisions. The story tells us that the famous Yellow Emperor was the first to use the Chinese Zodiac. He introduced it in the year 2,600 B.C. to begin the Chinese Lunar Year. In ancient China, the emperors were well schooled in astrology. It was believed that one had to know the ways of the stars and the heavens to be a worthy ruler. Legendary Origin of the Chinese Zodiac A couple of legends exist telling why the Chinese Zodiac is ordered the way it is. According to one version, the Buddha summoned all the animals in the world to a meeting. Only the twelve animals – rat, ox, tiger, rabbit, dragon, snake, horse, goat, monkey, rooster, dog and pig – heeded his call. The Buddha rewarded each animal by making it the ruler of one of the signs. He gave them each year according to their order of arrival. A second version narrates how the beasts argued over who should come first in the yearly cycle. So the Jade Emperor told them to race...
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