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Topic: Durham Region

	Astronomy
		Observational astronomy is concerned mostly with getting data, which involves building and maintaining instruments and processing the resulting data; this branch is at times referred to as "astrometry" or simply as "astronomy." Theoretical astrophysics is concerned mainly with figuring out the observational implications of different models, and involves working with computer or analytic models.
		In astronomy, information is mainly received from the detection and analysis of electromagnetic radiation, photons, but information is also carried by cosmic rays, neutrinos, meteors, and, in the near future, gravitational waves (see LIGO and LISA).
		A traditional division of astronomy is given by the region of the electromagnetic spectrum observed:
	www.brainyencyclopedia.com /encyclopedia/a/as/astronomy.html (1561 words)

	Durham - The City of Durham (Site not responding. Last check: 2007-10-22)
		Durham is one of the most beautiful cities of the England.
		Durham is situated 25 km (15 miles) to the south of Newcastle upon Tyne, in North East England.
		Durham is a hilly city, claiming to be built upon the symbolic seven hills.
	www.seehomesindurham.com (313 words)

	Kids.net.au - Encyclopedia Astronomy and astrophysics - (Site not responding. Last check: 2007-10-22)
		Observers use a variety of means to obtain data about different phenomena, data that is then used by theorists to create and constrain theories and models, to explain observations and to predict new ones.
		In astronomy, the main way of obtaining information is through the detection and analysis of electromagnetic radiation, photons, but we also receive information from outside the earth carried by cosmic rays, neutrinos, and, in the near future, gravitational waves (see LIGO and LISA[?]).
		Optical astronomy refers to the techniques used to detect and analyze light in and slightly around the wavelengths than can be detected with the eyes (about 400 - 800 nm).
	www.kids.net.au /encyclopedia-wiki/as/Astronomy_and_astrophysics (982 words)

	Astronomy
		Galactic astronomy) or problems addressed (such as star formation or cosmology); or by the way used for obtaining information (essentially, what region of the spectrum is used).
		While the first division is applicable to both observers and theorist, the second one applies only to observers (and imperfectly), as theorists try to use all the information available, in all wavelength, and observer often observe in more than one region of the spectrum.
		In astronomy, the main way of obtaining information is through the detection and analysis of electromagnetic radiation, photons, but information is also carried by cosmic rays, neutrinos, and, in the near future, gravitational waves (see LIGO and LISA).
	www.fact-index.com /a/as/astronomy.html (1556 words)

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