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Old 18-09-2014, 09:30 PM   #287
lightgiver
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Join Date: Apr 2008
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Lightbulb Arecibo


Quote:
The last part represents the Arecibo radio telescope with its diameter: 2,430 multiplied by the wavelength gives 306.18 m (1,004 ft 6 in). In this case, the number is oriented horizontally, with the least-significant-digit marker to the lower right in the image. The part of the image that looks like a letter "M" is there to demonstrate to the reader of the message that the curved line is a parabolic mirror..The Arecibo message was broadcast into space a single time via frequency modulated radio waves at a ceremony to mark the remodeling of the Arecibo radio telescope in Puerto Rico on 16 November 1974.. The message was aimed at the current location of globular star cluster M13 some 25,000 light years away because M13 was a large and close collection of stars that was available in the sky at the time and place of the ceremony - by the time the message reaches that point in space, M13 will have moved..Since the principles of reflection are reversible, parabolic reflectors can also be used to project energy of a source at its focus outward in a parallel beam, used in devices such as spotlights and car headlights..The Arecibo message as decoded into 23 rows and 73 columns... .



The cardinality of 1,679 was chosen because it is a semiprime (the product of 2 prime numbers), to be arranged rectangularly as 73 rows by 23 columns.. The alternative arrangement, 23 rows by 73 columns, produces jumbled nonsense. The message forms the image shown on the right, or its inverse, when translated into graphics, characters and spaces..The nucleotides are described as sequences of the 5 atoms that appear on the preceding line..Nucleotides are organic molecules that serve as the monomers, or subunits, of nucleic acids like DNA and RNA...Without the phosphate group, the nucleobase and sugar compose a nucleoside. The phosphate groups form bonds with either the 2, 3, or 5-carbon of the sugar, with the 5-carbon site most common..The Robert C. Byrd Green Bank Telescope (GBT) is the world's largest fully steerable radio telescope.Its operation is highly efficient, and it is used for astronomy about 6500 hours every year, with 2000–3000 hours per year going to high frequency science..The existence of the telescope within the Radio Quiet Zone allows for the detection of faint scientific signals which otherwise would be eclipsed by man-made signals..The Olympic Flame is traditionally lit at Olympia, Greece, use's a parabolic reflector concentrating sunlight, and is then transported to the venue of the Games...
http://en.wikipedia.org/wiki/Parabolic_reflector
http://www.davidicke.com/forum/showp...7&postcount=50Maybe he's not that smart.. Maybe he's like a worker bee who only knows how to push buttons or something..It's your turn to do the dishes, fellas..Can you say 'E.T... http://www.davidicke.com/forum/showp...postcount=1722
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