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	Arecibo Observatory - Wikipedia, the free encyclopedia
		The Arecibo telescope is distinguished by its enormous size; the main collecting dish is 305 m in diameter, constructed inside the depression left by a karst sinkhole.
		The Arecibo telescope's dish surface is made of 38,778 perforated aluminium panels, each measuring about 1 m by 2 m (3 ft by 6 ft), supported by a mesh of steel cables.
		Arecibo was also the source of data for the SETI@home distributed computing project put forward by the Space Sciences Laboratory at the University of California at Berkeley.
	en.wikipedia.org /wiki/Arecibo_radio_telescope (960 words)

	Arecibo Radar Astronomy
		Arecibo random-code data from late 1992 also reveal a backscatter enhancement from the north polar ice cap which is slightly weaker than the south polar echo at the same wavelength.
		Arecibo random-code reflectivity maps from 1990 indicate that the main channel of Ares Vallis southeast of the lander site is moderately (on rock scales) than the terrain through which it flows, but neither it nor the lander site itself are unusually rough in an absolute sense.
		DSN Goldstone system, Arecibo will be very much the dominant instrument in the field although the limitated declination coverage of the Arecibo antenna means that the Goldstone system will continue to play an important role in providing both coverage at declinations outside Arecibo's coverage and measurement of wavelength dependent properties.
	alumnus.caltech.edu /~nolan/radar/AUSAC.html (5020 words)

	Radiotelescopio: Tutte le informazioni su Radiotelescopio su Encyclopedia.it (Site not responding. Last check: 2007-11-07)
		Arecibo è così grande che la parabola è ancorata al suolo e inamovibile.
		La costruzione delle antenne è invece meno difficile di quanto possa sembrare, perché come ogni telescopio la loro superficie può permettersi di contenere errori non più grandi di una piccola frazione della lunghezza d'onda osservata.
		Alcuni, come Arecibo, sono addirittura fittamente forati per ridurne il peso: finché i fori sono molto più piccoli della lunghezza d'onda osservata, l'osservazione non ne risentirà.
	www.encyclopedia.it /r/ra/radiotelescopio.html (579 words)

	Link To Puerto Rico.com - Arecibo
		Arecibo is also known as "La Villa del Capitán Correa" (Captain Correa Villa) when Lieutenant Antonio de los Reyes Correa on August 5, 1702, with a small group of armed militia ambushed and repulsed an attack of 40 English soldiers.
		Arecibo is bordered by: the Atlantic Ocean to the north, Utuado and Ciales to the south, Hatillo to the west, and Barceloneta and Florida to the east.
		The population of Arecibo is one of the four oldest of the Island.
	www.linktopr.com /arecibo_e.html (955 words)

	Arecibo Observatory - Wikipedia, the free encyclopedia (Site not responding. Last check: 2007-11-07)
		On 7 April 1964, shortly after its inauguration, 's team used it to determine that the rotation rate of Mercury was not 88 days, as previously thought, but only 59 days.
		Arecibo was also the source of data for the SETI@home distributed computing project put forward by the SETI Institute.
		The Arecibo Observatory was also featured in the movie Contact.
	www.lighthousepoint.us /project/wikipedia/index.php/Arecibo_radio_telescope (1036 words)

	Cornell News: Arecibo message anniversary
		The message was sent during the dedication of a major upgrade to the Arecibo radio telescope in Puerto Rico on the afternoon of Nov. 16, 1974, and contained some very basic information about the human race.
		Arecibo Observatory is operated by the National Astronomy and Ionosphere Center, managed by Cornell University for the National Science Foundation.
		Since the transmitter was installed in 1974, Arecibo radar has been used for extensive explorations of the solar system, including detailed mapping of the surfaces of the moon and Venus.
	www.news.cornell.edu /releases/Nov99/Arecibo.message.ws.html (899 words)

	www.cropcircleresearch.com : The Chilbolton 'Arecibo message' Formation (Site not responding. Last check: 2007-11-07)
		Arecibo is on the northern coast of Puerto Rico and contains a natural disc-shaped hole in the rock.
		Lastly, what was representative of the Arecibo transmitter in the original message is even more cryptic and would imply a diagrammatic version of the formation which appeared in the same field at Chilbolton last year, in 2000.
		The representation of last years formation in place of the Arecibo dish is possibly the most difficult to interpret.
	www.cropcircleresearch.com /articles/arecibo.html (2928 words)

	AMO.NET - We made Contact. - The Arecibo "Crop Formation" reply from extraterrestrial life. (Site not responding. Last check: 2007-11-07)
		The most interesting experiment in 1974 with Arecibo however was it's 3 Terawatt narrowband transmission of a "human template" in the direction of the M13 globular star cluster which consists of 300,000 stars and is in the constellation of Hercules.
		The unexpected coorelation between Einstein and Arecibo in 1974 is evident as a Nobel prize was awarded due to Arecibo discovery of the Puslar in a "Binary system" and the astronomers helping to prove his Theory of General Releativity.
		The targets of the re-transmission of the Arecibo message were 3 nearby stars (HD 178428, HD 190406, HD 190360) and was transmitted by the 70 meter radio telescope at Evpatoriya, in the Ukraine.
	amo.net /Contact (5706 words)

	Arecibo/GBT Venus Images (Site not responding. Last check: 2007-11-07)
		Arecibo channel 1 (SC) corresponds to GBT channel 2 and vice versa.
		Arecibo C1 Arecibo C2 The correlation of the Arecibo-GBT echoes is very low.
		This is the same area as above, after careful registration of the Arecibo C1 echoes and GBT C2 echoes, and with a 2x2 average compared to the nominal resolution.
	www.gps.caltech.edu /~margot/venus/aogbt.html (231 words)

	Cornell News: hydrocarbon lakes on Titan
		The Arecibo radar operates at a 13-centimeter wavelength (2,380 megahertz), and the transmitted power is close to one megawatt (the equivalent of about 1,000 microwave ovens).
		On Campbell's team for the Arecibo radar observations of Titan were Gregory Black, the University of Virginia; Lynn Carter, Cornell graduate student; and Steven Ostro, Jet Propulsion Laboratory.
		The Arecibo Observatory part of NAIC which is operated by Cornell University under a cooperative agreement with the NSF.
	www.news.cornell.edu /releases/Oct03/Titan.Campbell.bpf.html (564 words)

	About Puerto Rico . . . Arecibo (Site not responding. Last check: 2007-11-07)
		Still, Arecibo is the largest city in geographical size on the island, has an extensive coast line used for all types of water sports and commercial fishing and boasts hundreds of years of history since its foundation in 1515.
		Arecibo is home to the world-famous Arecibo Observatory featuring the world's largest radio telescope.
		The city is popularly known as la villa del Capitán Correa in remembrance of a battle fought successfully on its shores by one Capitán Antonio Correa and a handful of soldiers to repel an invasion by sea in 1702.
	www.dollarman.com /puertorico/arecibo.html (250 words)

	Arecibo, Puerto Rico
		Arecibo is known as "La Ribera del Arecibo" (the shore of the Arecibo) or "El Díamante Del Norte" (the north diamond).
		Arecibo is also known as "La Villa del Capitán Correa" in memory of a battle fought successfully on its shores by Captain Antonio Correa and a handful of soldiers to repel a British invasion by sea lead by Englishmen Admiral Whelstone in August 5, 1702.
		Arecibo is bordering the Atlantic Ocean, north of Utuado and Lares; east of Hatillo; and west of Barceloneta and Florida.
	welcome.topuertorico.org /city/arecibo.shtml (663 words)

	IEEE History Center - IEEE Milestones: NAIC/Arecibo Radiotelescope, 1963
		The Arecibo radar telescope was conceived by William E. Gordon, then a professor of electrical engineering at Cornell University.
		Arecibo Observatory is now part of the National Astronomy and Ionosphere Center (NAIC), a national research center operated by Cornell University under cooperative agreement with the National Science Foundation.
		Arecibo's azimuth arm is 93 meters (304 feet) long, 3.7 meters (12 feet) wide, and 10 meters (33) feet deep.
	www.ieee.org /organizations/history_center/milestones_photos/arecibo.html (780 words)

	C.O.C. : Arecibo Observatory (Site not responding. Last check: 2007-11-07)
		Cosmic radio signals are so weak, in fact, that all the energy collected by all the radio telescopes on our planet during the 60+ year history of radio astronomy amounts to no more than the energy released when a few raindrops hit the ground.
		An enormously sensitive collector of radio waves, such as the giant Arecibo radio-radar telescope, was needed to capture these signals.
		No. The Arecibo system operates at frequencies between 50 and 10,000 megohertz, corresponding to a range of wavelengths between 6 meters and 3 centimeters.
	www.owenblock.com /clubowen/Arecibo.html (730 words)

	SPACE.com -- Arecibo: Celestial Eavesdropper
		ARECIBO, Puerto Rico -- It is a space-age sentinel, rising out of the prehistoric jungles of Puerto Rico -- a 1,000-foot (305-meter) diameter aluminum "ear," cocked perpendicular to Earth, leaning into the sky, listening.
		But Arecibo is first and foremost the cradle of scientific discoveries that have changed our vision of the universe.
		Arecibo Observatory is operated by Cornell University in cooperation with the National Science Foundation (NSF) which provides most of its $10 million annual budget.
	www.space.com /scienceastronomy/astronomy/arecibo_profile_000508.html (2210 words)

	HISTORIA DE ARECIBO
		La economía de Arecibo, el municipio más extenso de Puerto Rico, depende de varios factores: en primer lugar se encuentran las industrias, sobre todo aquellas que elaboran productos, eléctricos, electrónicos, de metal, instrumentos médicos y otros.
		En el 1986 Arecibo contaba con 78 instituciones educativas, cuatro de ellas de educación superior; siete facilidades de salud (4 hospitales, una unidad de salud pública, un centro de rehabilitación y un centro de salud menta).
		Arecibo ha tenido el privilegio de tener como Alcaldes hijos de nuestra patria, y otros procedentes de otros lugares, que han dejado su huella en la historia como primeros ejecutivos de nuestra ciudad.
	www.ortizal.com /arecibo.html (9976 words)

	World’s biggest dish opens wider - Space News - MSNBC.com
		ARECIBO, Puerto Rico, July 28, 2003 - The living quarters may be as spare as a college dorm room, and the nightlife is all work and little play.
		Arecibo’s telescope is currently used for the SETI Institute’s targeted search as well as Project Serendip’s full-sky SETI survey.
		On the other hand, Arecibo’s highly visible role in the search for aliens could diminish as the SETI Institute turns its attention to the Allen Telescope Array, due for construction in California.
	msnbc.msn.com /id/3077800 (1402 words)

	Arecibo Softball Team - (, IL) - powered by LeagueLineup.com
		Arecibo held on to beat Candela 12-9 in a game that was a battle till the end.
		Arecibo in the bottom of the 7th trailing by 2 and 1 out when Miguel Caban hit a deep ball that went to the fence as Junior Ayala and Tommy Gonzalez score as Arecibo scores 3 runs and pull off the 1st game of the series.
		Arecibo is waiting for the winner from this series and is looking forward to a championship run.
	www.leaguelineup.com /welcome.asp?url=wereback (591 words)

	Optical SETI and the Arecibo Myth (Site not responding. Last check: 2007-11-07)
		SETI pioneer (and former Arecibo director) Dr. Frank Drake teaches electromagnetic communications range, using as an example the highly capable Arecibo radiotelescope [2].
		Although Arecibo can indeed transmit at 2380 MHz, I have chosen the H1 frequency of 1420 MHz [7] as being more realistic for SETI, on the long-standing grounds that it may well be the obvious choice of other intelligent civilizations.
		If Arecibo could hear Arecibo at 100,000 LY, we reasoned, then small TV dishes (equipped, of course, with state-of-the-art receivers and digital signal processors) should be able to hear Arecibo at a range of 1,000 LY.
	www.setileague.org /articles/oseti.htm (3229 words)

	Arecibo Message
		The first attempt at CETI; it consisted of a message beamed toward the star cluster M13 (the Great Cluster in Hercules) on November 16, 1974, by the Arecibo radio telescope.
		Following the announcement that the transmission had been made, a debate began (which continues to this day) on the wisdom of attempting CETI (see CETI, opposition to).
		On its 25,000-year-long journey, it is likely that the Arecibo Message will be seriously degraded by its interaction with cosmic dust in the interstellar medium.
	www.daviddarling.info /encyclopedia/A/AreciboM.html (396 words)

	The Planetary Society: SETI@home Update, 8/1/2002
		When we last heard from the receiver engineering team at Arecibo earlier this year (see "A New Receiver for SETI@home", February 21, 2002), they were just putting the finishing touches on a revamped SETI receiver.
		To Wray and her colleagues the frequency of the signal was unsettlingly familiar: 1160 MHz is the exact frequency of the "local oscillator" (LO), used in conjunction with the SETI receiver.
		The SETI LO box at Arecibo was located 20 feet away from the receiver, and connected to it by a cable.
	www.planetary.org /html/UPDATES/seti/SETI%40home/Update_080102.html (1090 words)

	SPACE.com -- SETI@Arecibo: Bigger Is Better
		Their day jobs, back at the institute, are to construct the systems that will drive and point the new Allen Telescope Array an instrument that, when completed in 2005, will be used 24-seven for SETI observations.
		This is their first trip to Arecibo, and theyre still gasping at the size of the antenna.
		When that fallen feather slams into the linoleum, the energy released is 100 trillion times greater than that collected by the entire Arecibo dish during a five-minute observation of a 0.8-Jansky signal.
	www.space.com /searchforlife/phoenix_diary__two_010312.html (910 words)

	Universe Today - Arecibo Gets an Upgrade
		In the past, Arecibo had the ability to look at one spot in the sky at a time, and so it took many observations to build up a comprehensive image.
		The Arecibo Observatory telescope, the largest and most sensitive single dish radio telescope in the world, is about to get a good deal more sensitive.
		The complex new addition to the Arecibo telescope was hauled 150 meters (492 feet) above the telescope's 1,000-foot-diameter (305 meters) reflector dish starting in the early morning hours.
	www.universetoday.com /am/publish/arecibo_gets_upgrade.html (663 words)

	Arecibo
		Arecibo derives its name from a local Indian chief called Jamaica Aracibo.
		An astronomical observatory, Arecibo is a powerful radar-radio telescopes-the largest single-unit radio telescope of its type in the world.
		Inaugurated in 1963, it is a 1000-foot spherical reflector that uses perforated aluminum panels to focus incoming radio waves on a movable antenna that hangs 500 feet above the reflector surface allowing it to track a celestial object in different regions of the sky.
	ltmtnele.tripod.com /elyunque/id25.html (139 words)

	Arecibo (Puerto Rico)
		They do not know why Lexjuris site show a diferent flag but in their site the text say that Arecibo flag is half blue at left and at right has the "diamonts" blue and gold,but when they show the flag, it is a different one.
		Arecibo's Coat of Arms and shield - The true and accepted coloring for both are dark blue and deep or orange gold for the shield, mural crown and belt, and silver for the belt buckles.
		Arecibo has existed as a population nucleus since the early years of the sixteenth century (1515).
	atlasgeo.span.ch /FOTW/flags/pr-ac.html (1089 words)

	NASA to Terminate All Radar Astronomy at Arecibo \| SpaceRef - Your Space Reference
		The large Arecibo dish is used to characterize the surface properties and shapes of asteroids having orbits that bring them close to Earth.
		Arecibo radar measurements provide the most precise orbits for these objects, from which the best assessment of their hazard to the Earth can be made.
		The Arecibo program is unique in the precision of its measurements and its ability to characterize these targets, but pressure from increasing costs in the search and recovery programs required to meet the 2008 deadline, with no increase in funding for the program to do the job, has caused NASA to cannibalize other programs.
	www.spaceref.com /news/viewpr.html?pid=6945 (665 words)

	Cornell News: Arecibo sky survey
		ARECIBO, PUERTO RICO -- Fitted with its new compound eye on the heavens, the National Science Foundation's (NSF) Arecibo Observatory telescope, the world's largest and most sensitive single-dish radio telescope, early tomorrow morning begins a years-long survey of distant galaxies, perhaps discovering elusive "dark galaxies" -- galaxies that are devoid of stars.
		Astronomers at Arecibo Observatory hope the new sky survey will result in a comprehensive census of galaxies out to a distance of 800 million light years from our galaxy, the Milky Way, in nearly one-sixth of the sky -- or some 7,000 square degrees.
		The search, conducted by an international team of students and scholars, is the first of a series of large-scale Arecibo surveys that will take advantage of a the telescope's new instrument, installed last year, called ALFA (for Arecibo L-Band Feed Array).
	www.news.cornell.edu /releases/Feb05/Arecibo.skysurvey.deb.html (871 words)

	The Planetary Society: SETI@home Update, 12/4/2002
		Gaussians will be ranked according to how well their curve matches a perfect gaussian generated by the Arecibo dish, as well as by their strength.
		To these are added the numerous distant galaxies that dot the skies at Arecibo's latitude, on the assumption that a signal might just possibly originate from one of them as well.
		In some cases a particular kind of signal, say a gaussian, was detected at a given location during one pass of the Arecibo dish, while a different kind of signal, say a triplet, was detected coming from the same direction during a later pass.
	www.planetary.org /html/UPDATES/seti/SETI@home/Update_120402.html (1698 words)

	SPACE.com -- Report from Arecibo: It Just Keeps Getting Better
		Arecibo was, at that time, the worlds largest single-dish antenna.
		Arecibo has been steadily transformed since 1963, when it snagged its first radio photons.
		Arecibo may be only slightly older than Jack Benny ever was, but its come a long way baby.
	www.space.com /searchforlife/seti_arecibo_040219.html (618 words)

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