established the basic specifications for a next generation large capacity optical disc video recording format called "Blu-ray Disc". The Blu-ray Disc enables the recording‚ rewriting and play back of up to 27 gigabytes (GB) of data on a single sided single layer 12cm CD/DVD size disc using a 405nm blue-violet laser. By employing a short wavelength blue violet laser‚ the Blu-ray Disc successfully minimizes its beam spot size by making the numerical aperture (NA) on a field lens that converges the
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Ray Parslow is a famous graphic designer and he loves his work. Ray enjoys working with a talented team who create designs for many different clients from large organisations‚ corporations and government departments‚ through to small businesses and charities. His work includes anything from designing business cards‚ logos‚ signage‚ posters‚ brochures or annual reports through to large-scale environmental graphics such as the Fox Studios’ site. A wide mix of interesting projects keeps his job exciting
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Meteorology 11 October 2013 Harmful UV Rays and Their Differences As we all know being over exposed to the sun and its harmful rays can be very dangerous for your skin‚ and may lead to skin cancer‚ but there are some UV rays that are more dangerous than others. Coming from the skin cancer stand point the most dangerous rays are UVB rays‚ they are the main cause of most skin cancers. Although UVB rays are the most harmful to our skin it has the second shortest wavelength coming in at 290-320
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What are X-rays? X-rays are a form of radiation that can pass through solid and semi-solid substances. In carefully controlled doses‚ they can be used to capture images of the body’s internal structures. How X-rays work X-rays are a type of radiation. Light and X-rays are similar sources of energy. However‚ light has a much lower frequency than X-rays and is absorbed by your skin. X-rays have a higher frequency and pass through the human body. As X-rays pass through the body‚ energy particles
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Charles Charles Eastman was a young Dokota physician who went to Dartmouth College and Boston University. In 1890 he moved his practice as a physician to the Pine Ridge reservation in western South Dakota. His was part of Wahpenton and Mdewakanton Dakota tribe rather than Oglala Lakota and took pride in being Native. Upon his arrival‚ he experienced a disastourous dust storm and later would come across the aftermath of a massacre. The massacre was due to altercations of warfare on the northern
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A Legend in the Making: Inside the Mind of Ray Lewis Glen Davis Dr. Martin Lewis Morgan State University A Legend in the Making: Inside the Mind of Ray Lewis Every couple of years‚ there are only a handful of special players who are come along in the NFL. These players have the ability to change the game or help it evolve. About 12 years ago‚ the Baltimore Ravens were fortunate enough to add one of these special players to their team. Ray Lewis was drafted by the Baltimore Ravens in the
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times when students are “off task” from their official class studies TOPIC: How teenagers spend their leisure time at El Dorado West Secondary School REASON FOR RESEARCH A number of students in my school are not performing as they should academically and teachers want to find out a way to help these students. This research gives an idea of the spare time activities of these students. So‚ both teachers and students will know how to structure their school hours into more positive activities
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Satyajit Ray [2 May 1921 – 23 April 1992) was an Indian filmmaker‚ regarded as one of the greatest auteurs of world cinema. Ray was born in the city of Calcutta into a Bengali family prominent in the world of arts and literature. Starting his career as a commercial artist‚ Ray was drawn into independent filmmaking after meeting French filmmaker Jean Renoir and viewing Vittorio De Sica’s Italian neorealist 1948 film Bicycle Thieves during a visit to London. Ray directed 36 films‚ including feature
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Ultraviolet rays can be separated into three different wavelengths. UVA‚UVB and UVC. this way they can be differentiated due to their wavelengths and the amount of energy they contain. UVA contains the least amount of energy and a smaller wavelength. UV-A radiation passes the earth’s atmosphere almost unfiltered. As both UVB and UVA rays can be detrimental to our health‚ it is important that we protect ourselves. UVC contains the highest amount of energy and a bigger wavelength. When the uv rays enters
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Ray Dalio‚ who runs the hedge fund behemoth Bridgewater Associates‚ is speaking at the Bloomberg Markets Most Influential Summit with former New York City mayor Michael Bloomberg. Bloomberg TV’s Stephanie Ruhle is the panel moderator. Both CEOs are talking about the intense focus on transparency at both of their firms. Dalio is also one of those closely followed macro fund managers. He is also known for ’round-the-clock surveillance at his firm. Everything is recorded. Dalio said that
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