all interdependent and interrelated with each other. The telescope must perform all three functions at once at once for it to work. Light gathering: Light gathering power is a measure of how much light the objective (primary mirror in a reflector‚ lens in a refractor) can collect from distant objects. Nominally‚ it is proportional to the square of the diameter of the aperture. Doubling the aperture results in gathering four times as much light. Resolving: Resolving power is a measure of the amount
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Equipment and Effect Draft IT/235 Amber Nielsen 4/10/2013 If you were to go and do an in-house the equipment that you would need to bring is a camera the one that is most recommended is the SLR or as it is also called the Single Lens Reflex camera this is a great camera and is perfect for what needs that you will be required of you when doing an in-house. The reason for this is because it allows you to capture exactly what you see through the viewfinder I cannot tell you how helpful
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objects that are only 0.2 nanometres apart. Electron microscopes use magnets instead of actual lenses to focus the beam on the specimen u want to magnify. Electrons are not visible to the human eye so the image produced is projected onto a screen or photographic paper‚ this make a black and white image appear. The resolution of an electron microscope is 500 000 times greater than that of a human eye. In transmission electron microscopes (TEM)‚ electrons are generated and pass through a thin sample. The
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microscope focuses light on a tiny bright spot of the specimen‚ the microscope accumulates light from the well-illuminated specimen in the stage of the microscope. The small objective lens then brings the image of the object into focus within the microscope’s tube‚ and is then magnified by a second lens‚ called an ocular lens or the eyepiece. The specimen in an optical microscope can be rather thick. In contrast‚ unlike the light microscope‚ the electron microscope visualises objects using a thin beam
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A ground breaking new tool used to study the heavens was introduced in the 17th century. This tool was known as the telescope. It revealed the cosmos in a different way than our naked eye could ever perceive. The telescope opened doors to countless stars‚ nebulae‚ galaxies‚ and a slew of never before seen wonders. With its creation came limitations and caused the need to improve and upgrade the methods in which the telescope functioned and find new ways of viewing the heavens.There are three main
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Spherical Mirrors A spherical mirror is a mirror which has the shape of a piece cut out of a spherical surface. There are two types of spherical mirrors: concave‚ and convex. These are illustrated in Fig. 68. The most commonly occurring examples of concave mirrors are shaving mirrors and makeup mirrors. As is well-known‚ these types of mirrors magnify objects placed close to them. The most commonly occurring examples of convex mirrors are the passenger-side wing mirrors of cars. These type of mirrors
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(refracting) called the “looker” by aligning a concave and a convex lens inside a metal tube. The convex lens refracted light to a specific point on the concave eyepiece making distant objects look magnified. When Galileo heard about the ’looker’‚ he decided to improveupon its design. Galileo called his model the ’telescope’. In his first attempt‚ Galileo built a three-power instrument containing a convex and a concave lens in 1609. He was more successful in further attempts to magnify objects
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Brief History of Canon Cameras | | | | | | 1933. Goro Yoshida and his brother-in-law‚ Sabura Uchida‚ founded the Precision Optical Instruments Laboratory. The goal: to make cameras to compete with the most advanced German models of the day. 1934. Japan’s first domestically-made 35mm focal-plane shutter camera‚ the "Kwanon’ -- named after the Buddhist Goddess of Mercy. 1935. "Canon" trademark registered. 1935. Hansa Canon cameras offered for sale at half the price of a Leica.
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After reading the article “The Ontology of the Photographic Image” by Andre Bazin‚ it opens the discussion of the origin of painting and sculpting‚ whether it was started by an ancient Egypt religion or something else. The first two paragraphs of the article explains the ancient Egypt religion of preserving their dead by covering them in cloth in order to keep up their appearance after reality (in death). However‚ modern day society is not considered with their appearance/survival after death but
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Brochure More information from http://www.researchandmarkets.com/reports/2104103/ Digital Camera Market in India 2012 Description: Digital camera market in India can be characterized with strong growth potential in the ensuing years. Currently‚ the market is mainly dominated by a handful of players and a cut-throat competition exists amongst these players. The market was valued at INR 17.5 bn during the fiscal year 2010 and is expected to attain a CAGR of 43% to reach INR 104.6 bn by 2015. Rising
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