NounSingular optics Plural uncountable optics (uncountable)
AnagramsFrom Wiktionary under the GNU Free Documentation License. Optics is the branch of physics which studies the behavior and properties of light, including its interactions with matter and the construction of instruments that use or detect it. Optics usually describes the behavior of visible, ultraviolet, and infrared light. Because light is an electromagnetic wave, other forms of electromagnetic radiation such as X-rays, microwaves, and radio waves exhibit similar properties. Most optical phenomena can be accounted for using the classical electromagnetic description of light. Complete electromagnetic descriptions of light are, however, often difficult to apply in practice. Practical optics is usually done using simplified models. The most common of these, geometric optics, treats light as a collection of rays that travel in straight lines and bend when they pass through or reflect from surfaces. Physical optics is a more comprehensive model of light, which includes wave effects such as diffraction and interference that cannot be accounted for in geometric optics. Historically, the ray-based model of light was developed first, followed by the wave model of light. Progress in electromagnetic theory in the 19th century led to the discovery that light waves were in fact electromagnetic radiation. Some phenomena depend on the fact that light has both wave-like and particle-like properties. Explanation of these effects requires quantum mechanics. When considering light's particle-like properties, the light is modeled as a collection of particles called "photons". Quantum optics deals with the application of quantum mechanics to optical systems. Optical science is relevant to and studied in many related disciplines including astronomy, various engineering fields, photography, and medicine (particularly ophthalmology and optometry). Practical applications of optics are found in a variety of technologies and everyday objects, including mirrors, lenses, telescopes, microscopes, lasers, and fiber optics. From Wikipedia under the
GNU Free Documentation License How do astronomers use active and adaptive optics to improve the resolution of telescopes? Q. How do astronomers use active and adaptive optics to improve the resolution of telescopes? Asked by PotionsandSnitches - Tue Dec 4 22:04:36 2007 - - 3 Answers - 0 Comments A. Its very difficult, they have to stand on a ladder. Answered by paducah_billy - Tue Dec 4 22:07:29 2007 What are some advantages of using fibre-optics instead of copper cables? Q. If there's website that talks more about this, please specify. Asked by sunshinegurl - Thu Jan 1 03:16:07 2009 - - 4 Answers - 0 Comments A. The advantages of using fibre optics Because of the Low loss, high bandwidth properties of fiber cable they can be used over greater distances than copper cables, in data networks this can be as much as 2km without the use of repeaters. Their light weight and small size also make them ideal for applications where running copper cables would be impractical, and by using multiplexors one fibre could replace hundreds of copper cables. This is pretty impressive for a tiny glass filament, but the real benefits in the data industry are its immunity to Electro Magnetic Interference (EMI), and the fact that glass is not an electrical conductor. Because fibre is non-conductive, it can be used where electrical isolation is needed, for instance… [cont.] Answered by What If - Thu Jan 1 04:20:19 2009 Can someone explain to me what makes fibre optics go much faster than DSL lines in accordance to internet?
Q. I'm wondering if it is light that travels through the cables? Asked by Keyvan D - Wed Jul 22 19:31:24 2009 - - 3 Answers - 0 Comments A. A typical DSL line runs by normal insulated copper cables, the data is transfered as electricity pulses, the cable then connects to your wireless router, and is transmitted to a receiver on your computer, giving you the internet. A Fiber-optics cable has extremely thin strings of glass (each about the size of a human hair) inside the cable, and a laser that blinks millions of times a second is used to transfer the data. As the glass in the cable bends, the light is also bent. At each end there is a device that receives the data converts it to the traditional electrical pulses and then that is sent to the router the same as above. Answered by Aeristes - Wed Jul 22 19:48:27 2009 From Yahoo Answer Search: "optics"  news.google.com Baruch College The Ticker When Neaz Noor entered his essay on fiber optics into 2009's CUNY Nobel Science Challenge, he did not think he would be chosen. ... news.google.com ThomasNet Industrial News Room (press release) Toronto, Canada - GAO Fiber Optics (www.GAOFiberOptics.com) has released its handheld optical light source as an essential instrument for field or ... news.google.com Globes High-speed optical communications solutions developer MultiPhy Ltd. has obtained a $675000 loan from Maayan Ventures Ltd. (TASE:MAYN) and Vertex Venture ... From Google News Search: "optics"  techfreep.com 327px x 516px | 58.80kB [source page] by Mike Zazaian October 10 2006 7 37pm 14 Comments A new consortium of hardware vendors is experimenting with new methods to push as much as 10 gigabytes per second through existing copper wire infrastructures making Fiber to the Home all  boardparadise.com 152px x 768px | 21.10kB [source page] From Yahoo Image Search: "optics"  effortlessanthropologie.blogspot.com roxy Wed, 24 Feb 2010 13:04:00 GM Anthropologie must have heard my whining and came through with the delicious Fiber . Optics. Dress ($198). I even love the name -- very work-appropriate for me. Maybe it's the color but I also find this dress to be Peter Pan reminiscent. ...  nextbigfuture.com (bw) Sat, 20 Feb 2010 17:44:40 GM The Harvard team's zone-plate array . optical. detection system, described in an article appearing in Lab on a Chip (Issue 5, 2010), may offer a solution. The array, which integrates directly into a massively parallel microfluidic device, ...  photonicsjobs.com unknown Fri, 30 Mar 2007 07:00:00 GM Industry experience in . optical. networking is preferred. IC Flows: a. Experience in designing high speed mixed signal ICs in a full custom analog CoT flow is a must. b. Experience in designing high speed digital blocks in a standard ... From Google Blog Search: "optics" |
