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Topic: True longitude

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	More Latitude and Longitude Practice--True and False (Site not responding. Last check: 2007-10-12)
		Longitude measures east or west of the prime meridian.
		Longitude must be describes as E or W unless it is the Prime Meridian or the International Date Line.
		The latitude and longitude coordinates of the south pole are 90°S. Answers: 1.
	www.jsu.edu /depart/geography/mhill/phygeogone/morlatln.html (212 words)

	Alibris: Longitude
		Without the ability to determine longitude, sailors and their ships were lost at sea as soon as they lost sight of land.
		The Quest for Longitude: The Proceedings of the Longitude Symposium, Harvard University, Cambridge, Massachusetts, November 4-6, 1993
		The Quest for Longitude is a book for students and for teachers, for collectors and for scholars, and for the thousands of people who, having enjoyed Sobel's Longitude, desire a well-illustrated reference that describes in detail the many fascinating devices and the intriguing characters who, by solving the ancient problem of finding longitude at...
	www.alibris.com /search/books/subject/Longitude (846 words)

	longitude
		A one hour difference (recorded at the sun's highest moment) from a point of departure marks one twenty-forth the spin of the earth or about 15 degrees, which is 1000 miles at the equator.
		Longitude was the secret that was to intervene between a world defined by disorder and chaos and a world defined by order and the rational mind.
		Hogarth had previously characterized the "longitude lunatic," but now with H-1 the idea of longitude solution as a joke of the insane had been transformed into a combination of art and science.
	www.wsu.edu /~hughesc/longitude.htm (1716 words)

	Longitude: The True Story of a Lone Genius Who Solved the Greatest Scientific Problem of His Time. - book reviews ...
		But this technique did not apply to longitude, and as a result the fleets of Europe spent inordinate time and incurred constant loss of life essentially wandering the high seas, trying to figure out where they were.
		Longitude is well-timed too, as the new Umberto Eco novel The Island of the Day Before features a protagonist marooned on an 18th-century vessel stocked with bizarre longitude instruments.
		Serious pursuit of a means of fixing longitude began in 1707, after four British frigates ran aground in fog near their home port owing to total east-west disorientation, with the loss of nearly 2,000 men.
	www.findarticles.com /p/articles/mi_m1316/is_n1-2_v28/ai_17761525 (871 words)

	[No title] (Site not responding. Last check: 2007-10-12)
		Planetary longitudes that the text provides for various epochs have been contrasted with the modern values after accounting for the precession of the equinoxes as per the ayanamsa formula prescribed in the treatise.
		True longitudes available in the treatise in the form of Dhruvas shall offer the best commentary on the observational as well as measurement skill of the medieval astronomers of Tamil — Kerala region, if examined in the light of modern astronomy.
		As the true Sun is 241003’, the greatest inequality of the nodes is +01017’ and therefore the mean Rahu would have been at 00012’ only sidereally i.e nearly zero (Mean longitude of Rahu by direct computation is 12041’ and sidereally this is zero).
	www.kerala.com /astrology/htm/Vakyakarana.doc (3344 words)

	Outpost 31, Montana District Royal Rangers
		The calculation of Latitude and Longitude into Degrees, Minutes, and Seconds, is much harder to do than using the UTM Grid, and this method has become very popular in Great Britain, and with our own Search and Rescue Teams here in the United States.
		TRUE NORTH is a directional line between any position on earth, to the True North Pole.
		All lines of Longitude are True North lines, and are also called `Meridian Lines.' True North is usually symbolized by an ARROW WITH A STAR on a Topo Map.
	helenafirstassembly.org /rr/grids.htm (2847 words)

	LONGITUDE - The True Story of a Lone Genius
		Here lies the real, hard-core difference between latitude and longitude beyond the superficial difference in line direction that any child can see: The zero-degree parallel of latitude is fixed by the laws of nature, while the zero-degree meridian of longitude shifts like the sands of time.
		To learn one's longitude at sea, one needs to know what time it is aboard ship and also the time at the home port or another place of known longitude at that very same moment.
		The British Parliament, in its famed Longitude Act of 1714, set the highest bounty of all, naming a prize equal to a king's ransom (several million dollars in today's currency) for a "Practicable and Useful" means of determining longitude.
	www.harmonics.com /lucy/lsd/sobel.html (1997 words)

	Astrology : T (Site not responding. Last check: 2007-10-12)
		In order to find out the true solar time, equation of time is used which is provided by the corresponding difference for a given moment, between the mean time and the true time.
		It is obtained by subtracting the Longitude of Sun from the longitude of Moon.
		Longitude of a celestial body measured as an arc of the ecliptic (q.v.) between the vernal equinoctial point and the meridian of the body (the perpendicular arc to the ecliptic drawn through the body).
	www.indiangyan.com /books/therapybooks/astrology_simplified/t.shtml (1394 words)

	The Dialist's Companion - Data Elements
		While the difference in the length of a true solar day from one day to the next is small, the variations add up over weeks and months to make the sun time recorded by a dial vary from a regular, uniformly running clock by as much as 16 minutes.
		The vernal equinox occurs when the sun's true longitude is 0°; note that this is only roughly approximated by the moment when the sun's declination is 0°.
		Longitude Correction is the difference between the Standard Time for the specified Time Zone and local mean time.
	sundials.org /publications/dcomp/dcomp2.htm (2083 words)

	StrongBrains - Longitude (Site not responding. Last check: 2007-10-12)
		Review of Longitude, The True Story of a Lone Genius Who Solved the Greatest Scientific Problem of His Time by Dava Sobel.
		To gauge longitude requires knowing the time aboard ship and also the time at another place of known longitude — at the very same moment.
		Longitude, The True Story of a Lone Genius Who Solved the Greatest Scientific Problem of His Time by Dava Sobel.
	strongbrains.com /pages/bookreview377.htm (504 words)

	BookPage Nonfiction Review: The Illustrated Longitude: The True Story of a Lone Genius Who Solved the Greatest ...
		For centuries, the difficulty of determining longitude was a barrier to accurate navigation.
		The only way to measure longitude was by the discrepancy between the time aboard your ship and the simultaneous time at, say, your home port.
		The Illustrated Longitude is the history of how clocks and watches developed, how our concepts of time changed, how Britannia came to rule the waves, and how one determined human being altered the course of history.
	www.bookpage.com /9901bp/nonfiction/illustrated_longitude.html (425 words)

	Computing planetary positions
		N = longitude of the ascending node i = inclination to the ecliptic (plane of the Earth's orbit) w = argument of perihelion a = semi-major axis, or mean distance from Sun e = eccentricity (0=circle, 0-1=ellipse, 1=parabola) M = mean anomaly (0 at perihelion; increases uniformly with time)
		True Anomaly (v): This is the actual angle between the planet and the perihelion, as seen from the central body (in this case the Sun).
		This algorithm yields the true anomaly, v, and the heliocentric distance, r, for a nearly-parabolic orbit.
	www.petesqbsite.com /sections/tutorials/tuts/ppcomp.html (5757 words)

	WXP Users Guide: Plot Domains
		There are projection coordinates such as the projection latitude and longitude, the true latitudes and mapping factor corrections.
		This is especially true of satellite images where the height of a scan line is not equal to the width of each picture element and therefore dx cannot be equal to dy to give a proper projection.
		This is especially true of satellite images where the width of one element on a scan line is not equal to the height on the scan line.
	weather.unisys.com /wxp/Users/User_plotdomain.html (998 words)

	surya siddhanta
		The longitude is calculated by first calculating the mean longitude for the particular body; this is the longitude that the body would have if it were moving around the celestial sphere at a constant rate.
		Knowing the true longitudes of the Sun and Moon at the time of the New Moon (they are identical of course) and the true longitudes of Rahu and Ketu allows one to calculate the celestial latitude of the Moon at this time.
		It is determined by knowing the difference in longitude between the nodes and the Moon and the amount by which the plane of the orbit of the Moon is tilted with respect to the plane of the path of the Sun.
	www.salagram.net /eclipse-suryasiddhanta.html (2019 words)

	Moon Motion
		True longitude of Moon = mean longitude + mean anomaly + evection + variation + annual inequality (+...)
		The eccentric anomaly (a parameterization of polar angle)
		The true anomaly specifies the position along the orbit.
	www.jgiesen.de /moonmotion/index.html (227 words)

	:: NASA Quest > Archives :: (Site not responding. Last check: 2007-10-12)
		Navigation with magnetic compass over long distances is difficult because the magnetic variation (the difference between magnetic and true north) is so high, and changes significantly over short distances.
		Grid North is an artificially-convened reference direction which is taken to be parallel to the Greenwich Meridian.
		By contrast, meridians of longitude converge so sharply near the poles that expressing headings with respect to True North becomes impractical.
	quest.arc.nasa.gov /antarctica/background/NSF/field-guide/manual20.html (611 words)

	Longitude: The True Story of a Lone Genius #8795, #5934
		The active quest for a solution to the problem of longitude persisted over four centuries and across all of Europe.
		Lacking the ability to determine their longitude, sailors were literally lost at sea as soon as they lost sight of land.
		A beautifully told true story of astronomy, navigation, clockmaking, history, and geography, mixed with intrigue, greed, and ambition.
	www.fun-books.com /books/8795.htm (255 words)

	Powell's Books - Longitude: The True Story of a Lone Genius Who Solved the Greatest Scientific Problem of His Time by ...
		The famous minds of that generation all thought the answer to determining longitude would be found in the stars, by using the sky as a map.
		Anyone alive in the eighteeth century would have known that "the logitude problem" was the thorniest scientific dilemma of the day — and had been for centuries.
		Dava Sobel is the bestselling author of Longitude, Galileo's Daughter, The Planets, co-author of The Illustrated Longitude, and editor of Letters to Father.
	www.powells.com /biblio/0140258795 (577 words)

	Booknotes
		Dava Sobel's Longitude tells the story of how 18th-century scientist and clockmaker William Harrison solved one of the most perplexing problems of history—determining east-west location at sea.
		This was no obscure, curious difficulty—without longitude, ships often found themselves so far off course that sailors would starve or die of scurvy before they could reach port.
		Longitude's story is surprising and fascinating, offering a window into the past, before Global Positioning Satellites made it look easy.
	www.booknotes.org /Program/?ProgramID=1498 (259 words)

	Lab 4 Handout
		Calculating your longitude, in principle, is a very easy thing to do, because the concept of it related to time zones, something we are very comfortable with.
		This same method works if you want to use night-time stars to determine your longitude, except you would need astronomical tables to tell you exactly when the ``guide'' stars should be every night.
		The problem with calculating longitude in this way is that you need a watch which doesn't lose significant amounts of time.
	www.astro.psu.edu /users/lewis/ASTRO11/lab4_handout.html (507 words)

	John Mitchell's Map: Sources and Compilation
		But in order to know the true Situation of those Places, we must have their Latitudes and Longitudes, which are of much more Consequence in a general Map, than their bare Shape or Figure, which we only find represented in our Draughts and Surveys.
		For the Longitude of Cape Sable we had no Certain Authorities, before the Observations of Chabert, and the Reckonings of our Ships here inserted, which make it in 65°.35' or 33'; agreeing within 2 min.; by which we have altered that and consequently the adjacent Parts of Nova Scotia and New England.
		Longitude of Hudson's Riv:, to determine the Longt: of the Coast of New England from thence.
	www.usm.maine.edu /~maps/mitchell/history3.html (3220 words)

	buy christmas gift online - christmas shopping - Longitude: The True Story of a Lone Genius Who Solved the Greatest ... (Site not responding. Last check: 2007-10-12)
		This is the engrossing story of the clockmaker, John "Longitude" Harrison, who solved the problem that Newton and Galileo had failed to conquer, yet claimed only half the promised rich reward.
		This look at the scientific quest to find a way for ships at sea to determine their longitude was a PW bestseller for eight weeks.
		Sobel provides a lively treatment of the search through the centuries for a ready answer to the longitude problem, either through using lunar tables or through making an accurate clock not subject to the vicissitudes of weather and ocean conditions.
	astore.amazon.com /chuvashiaportal/detail/0140258795 (465 words)

	Newsletter Short Books for You and Your Middle and Secondary Students
		The British Admiralty established a Board of Longitude that offered a prize of twenty thousand pounds sterling (millions of dollars in today's money) to anyone who could come up with a practical way to measure longitude at sea within half a degree of arc-- roughly 30 miles.
		As a scientific pursuit of educated classes, astronomy's promise appealed to the Board of Longitude, who saw an astronomical solution to longitude as a worthy contender for their prize.
		In contrast, the calculation of longitude using an accurate watch might be easily done by a seaman of common education.
	www.hawaii.edu /hga/Newsletter/Summer96/ShortBooks.html (1306 words)

	Name that Place! Latitude and Longitude Activity
		Longitude is an angular measurement of how far east or west one is of the Prime Meridian (i.e.
		In fact the conquest of the longitude problem is the subject of a recent book: Longitude: The True Story of a Lone Genius Who Solved the Greatest Scientific Problem of His Time by Dava Sobel.
		Longitude is also divided into degrees, minutes, and seconds and extends from the Prime Meridian to 180° W and to 180° E. Note: look on a globe 180° W and 180° E are the same place!
	astro.uchicago.edu /cara/southpole.edu/latlong.html (609 words)

	AETV.com Classroom Study Guides
		This special dramatic presentation for A and E is based in part on Dava Sobel's national best-selling novel Longitude: The True Story of Lone Genius Who Solved the Greatest Scientific Problem of His Time.
		Longitude is a drama that combines the story of Harrison with the story of a 20th century World War I veteran obsessed with clocks and Harrison's time pieces.
		Longitude would be useful for classes on World history, Maritime History, Science and Technology.
	www.aetv.com /class/admin/study_guide/archives/aetv_guide.0427.html (398 words)

	Longitude : the true story of a lone gen… by Dava Sobel \| LibraryThing
		Longitude : the true story of a lone gen… by Dava Sobel
		Longitude : the true story of a lone genius who solved the greatest scientific problem of his time
		The author portrays his subject with technical authority and reveals the characters in marvellous complexity, all set against the backdrop of naval history and adventure beginning in 1714.
	www.librarything.com /work.php?book=73602 (781 words)

	Fictionwise eBooks: Longitude: The True Story of a Lone Genius Who Solved the Greatest Scientific Problem of His Time ...
		Longitude: The True Story of a Lone Genius Who Solved the Greatest Scientific Problem of His Time [Secure Microsoft Reader/Adobe Reader 7]
		Longitude is the dramatic human story of an epic scientific quest, and of Harrison's forty-year obsession with building his perfect timekeeper, known today as the chronometer.
		Today, the latitude and longitude lines govern with more authority than I could have imagined forty-odd years ago, for they stay fixed as the world changes its configuration underneath them--with continents adrift across a widening sea, and national boundaries repeatedly redrawn by war or peace.
	www.fictionwise.com /ebooks/eBook2546.htm (1105 words)

	PRESS RELEASE Heroix to Demonstrate Agentless Performance Monitoring and Reporting at LinuxWorld 2005 (Site not responding. Last check: 2007-10-12)
		Heroix personnel at booth #350 will demonstrate the company's recently released Heroix Longitude, a new agentless monitoring and reporting product that is easy to deploy and use, yet provides comprehensive monitoring and detailed reporting capabilities.
		Longitude is designed to help organizations optimize the availability and performance of applications and systems without having to install software on the monitored computers.
		Longitude requires little to no configuration and can be up and running in the production environment within 15 minutes.
	www.marketwire.com /mw/release_html_b1?release_id=92137 (416 words)

	Amazon.co.uk: Longitude: The True Story of a Lone Genius Who Solved the Greatest Scientific Problem of His Time: Books: ... (Site not responding. Last check: 2007-10-12)
		Just to prove that the most wonderful stories can be produced from true life, this science book for the layman tells the irresistable tale of John Harrison, winner of the English Parliament's prize for the determination of longitude in 1770.
		In the case of Longitude, Sobel has dispensed with the weighty doorstop approach and instead provides us with one of the most dashing, informative and highly enjoyable strolls into the world of genius ever.
		Written with a flare for the dramatic, Longitude expounds not only the incredible quest undertaken by John Harrison, but also serves to tell of a period of history generally assumed to be without a value in Hollywood.
	www.amazon.co.uk /exec/obidos/ASIN/0140258795 (1101 words)

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