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	Terrestrial planet - Wikipedia, the free encyclopedia
		A terrestrial planet or telluric planet is a planet which is primarily composed of silicate rocks.
		Terrestrial planets are substantially different from gas giants, which may not have solid surfaces and are composed mostly of some combination of hydrogen, helium, and water existing in various physical states.
		Terrestrial planets all have roughly the same structure: a central metallic core, mostly iron, with a surrounding silicate mantle.
	en.wikipedia.org /wiki/Terrestrial_planet (290 words)

	Terrestrial television - Wikipedia, the free encyclopedia
		Terrestrial television (also known as over-the-air or OTA) is the traditional method of television broadcast signal delivery, by radio waves transmitted through open space.
		Terrestrial television broadcasting dates back to the very beginnings of television as a medium itself with the first long-distance public television broadcast from Washington, DC on April 7, 1927.
		In North America, terrestrial broadcast television operates on TV channels 2 through 6 (VHF-low band, known as band I in Europe), 7 through 13 (VHF-high band, known as band III elsewhere), and 14 through 69 (UHF television band, elsewhere bands IV and V).
	www.wikipedia.org /wiki/Terrestrial_television (410 words)

	Terrestrial - Wikipedia, the free encyclopedia
		In broadcasting terrestrial indicates that TV or radio signals are received through a conventional aerial.
		In communication networking, "terrestrial" indicates signals travelling through fiber optic cable or copper wire, usually located underground or undersea.
		Terrestrial may also be used in contrast to extra-terrestrial, indicating anything of Earth-origin rather than from outer space.
	en.wikipedia.org /wiki/Terrestrial (162 words)

	CalendarHome.com - Terrestrial Time - Calendar Encyclopedia
		Terrestrial Time (TT) is the modern time scale that is used instead of ephemeris time, which is obsolete.
		TT was introduced by the International Astronomical Union (IAU) in 1991 as the coordinate time scale consistent with the theory of general relativity for an observer on the surface of the Earth.
		TT is a new name for, and is equivalent to, Terrestrial Dynamical Time (TDT) which had been defined by the IAU in 1976.
	encyclopedia.calendarhome.com /TT.htm (192 words)

	[8.02] Obliquity Variations of Terrestrial Planets in Habitable Zones (Site not responding. Last check: 2007-10-20)
		In order for life, in particular for land-based life, to evolve and survive on terrestrial planets, small obliquity variations of the planet is required in addition to its orbital stability, because large obliquity variations may cause significant climate change.
		Large obliquity variations are caused by spin-orbit resonances where the precession frequency of a planet's spin nearly coincides with one of the precession frequencies of the planet's orbit.
		Stability of the obliquity variations of a terrestrial planet is not associated with its orbital stability.
	www.aas.org /publications/baas/v35n4/dda2003/16.htm (349 words)

	Terrestrial aeronomy (Site not responding. Last check: 2007-10-20)
		Non-Native Invasive Terrestrial Plants in Florida Descriptions and images of 12 of the most invasive terrestrial plants in Florida.
		Terrestrial Planet Finder TPF will advance our understanding of how planets and their parent stars form.
		Solar Terrestrial Influences Laboratory Provides fundamental and applied research in the field of solar-terrestrial physics, in situ and remote investigation of the geosphere, planets and the interplanetary space.
	www.serebella.com /encyclopedia/article-Terrestrial_aeronomy.html (287 words)

	Terrestrial Organisms
		Terrestrial vertebrates and snails usually have body fluids with salt concentrations equivalent to 0.16 M NaCl, or lower.
		This is usually explained by saying that the terrestrial arthropods evolved directly from marine ancestors, while the ancestors of terrestrial vertebrates and snails lived in fresh-water environments.
		Terrestrial vertebrates range in size from about 0.05 to 5 m, and are equal to or larger than the size of plants.
	www.cco.caltech.edu /%7Ebrokawc/Bi11/terrestOrgs.html (1109 words)

	Terrestrial Impact Craters
		Thus only about 120 terrestrial impact craters have been recognized, the majority in geologically stable cratons of North America, Europe and Australia where most exploration has taken place.
		Large terrestrial impacts are of greater importance for the geologic history of our planet than the number and size of preserved structures might suggest.
		For example, recent studies of the Cretaceous/Tertiary boundary, which marks the abrupt demise of a large number of biological species including dinosaurs, revealed unusual enrichments of siderophile elements and shock metamorphic features that are markers of meteorite impact events.
	www.solarviews.com /eng/tercrate.htm (2496 words)

	AllRefer.com - terrestrial planet (Astronomy, General) - Encyclopedia
		terrestrial planet, the earth or a planet that resembles the earth in its physical characteristics.
		The terrestrial planets in the solar system are the earth, Mercury, Venus, and Mars; Pluto is sometimes also classified as a terrestrial planet.
		Because they spin less rapidly than the Jovian planets, the terrestrial planets are less flattened at their poles.
	reference.allrefer.com /encyclopedia/T/terrestr.html (209 words)

	Planet Quest: Missions - Terrestrial Planet Finder
		The purpose will be to take family portraits of stars and their orbiting planets, and to study those planets to see which, if any, might be habitable, or might even have life.
		Terrestrial Planet Finder-C: a moderate-sized visible-light telescope, similar to the 4- by 6-meter (13.1- by 19.6-foot) version currently under study, to launch around 2014.
		Terrestrial Planet Finder-I: multiple spacecraft carrying 3 to 4 meter (9 to 13 foot) infrared telescopes flying in precise formation, to launch before 2020, and to be conducted jointly with the European Space Agency.
	planetquest.jpl.nasa.gov /TPF/tpf_architectures.cfm (363 words)

	Speech of Commissioner Paola Manacorda at the Conference on Digital Terrestrial Television
		It is widely recognised that the transition to digital terrestrial TV will be an essential step of the digital revolution, as it will extend the advantage of digital broadcasting to a much wider audience, turning digital TV into a veritable "mass" media.
		For this reason the Authority has decided to encourage terrestrial broadcasters to go digital, by envisaging special financial incentives: analogue terrestrial operators that will switch to digital within 36 months from the release of the licence will not pay their annual fee for the use of the terrestrial frequency for a six years period.
		This means that a terrestrial broadcaster already collecting 30% of the financial resources of the terrestrial television market is still allowed to operate in the radio business or in the satellite TV business.
	www.agcom.it /eng/reports_docs/dtt_manacorda.htm (1811 words)

	[13.02] The Role of Giant Planets in Terrestrial Planet Formation (Site not responding. Last check: 2007-10-20)
		We find that the structure of the resulting terrestrial planet system is usually the result of how effectively the terrestrial planet embryos are dynamically excited.
		The more excited the embryos become, the fewer terrestrial planets form, the more massive these planets are, and the closer they are to the central star.
		terrestrial planet forms, which is probably too close to the star to be habitable.
	www.aas.org /publications/baas/v33n3/dda2001/35.htm (255 words)

	GTOS :: Activities :: Terrestrial Carbon Observations
		The current Implementation Plan for the Terrestrial and Atmospheric Carbon Observation Initiative (TCO) is currently undergoing revision and updating by the new TCO panel led by the Chairman of TCO Prof Shaun Quegan.
		International workshop on improved quantification of global carbon cycle fluxes organized by the Terrestrial Carbon Observation (TCO) initiative and the Global Carbon Project (GCP).
		The workshop is intended to increase the availability of more accurate and mutually consistent estimates of the distribution of carbon sources and sinks at a regional and global level.
	www.fao.org /gtos/TCO.html (166 words)

	Biological Survey of Canada (Terrestrial Arthropods)
		The Biological Survey of Canada (Terrestrial Arthropods) helps to coordinate scientific research among specialists on the Canadian fauna of insects, mites, and their relatives.
		This website provides information about the structure of the Survey and its various scientific projects, general information about the fauna and about the people who work on it, and listings of the Survey's scientific publications, briefs and newsletters, many of which are available here in electronic form.
		The text available on the Biological Survey of Canada website may be reproduced without permission provided that its use falls under the Copyright Act, and is solely for the purposes of private study, research, criticism, review or newspaper summary.
	www.biology.ualberta.ca /bsc/bschome.htm (228 words)

	Digital Terrestrial Television (Site not responding. Last check: 2007-10-20)
		NTL has pioneered the development of MPEG-2 video compression systems and is now a leading player in the introduction of digital terrestrial television for the UK.
		We were first to broadcast multi-channel digital TV terrestrially in February 1995 and since then work has progressed steadily on a 2000-carrier system working to the European specification of the Digital Video Broadcasting (DVB) group.
		Digital Terrestrial TV offers exciting and commercially attractive opportunities to broadcasters in the UK and internationally for expanding and developing their business.
	www.eopd.freeserve.co.uk /dtt.htm (440 words)

	ECN Terrestrial Site - Moor House - Upper Teesdale
		It is England's highest and largest terrestrial National Nature Reserve (NNR), a UNESCO Biosphere Reserve and a European Special Protection Area.
		A wide range of upland issues have been investigated especially the impact of land use change, climate change and the deposition of pollutants, and the functional processes of blanket peatland and streams.
		In the 1960s and 1970s the area was intensively studied as part of the International Biological Programme and in the 1990s as a flagship site of the Terrestrial Initiative in Global Environmental Research (TIGER).
	www.ecn.ac.uk /sites/moorh.html (711 words)

	North Cascades National Park: Terrestrial Riparian Arthropod Investigations
		Spiders are ubiquitous and diverse predators in terrestrial ecosystems (Halaj et al.
		There is also evidence that the density, behavior, and population dynamics of spiders act to stabilize terrestrial arthropod populations (Breymeyer 1966, Turnbull 1973, Riechert 1974, Enders 1975).
		A survey of the terrestrial riparian Arthropod fauna of Big Beaver Creek, North Cascades National Park (Washington) was conducted during the snow-free seasons of 1995 and 1996.
	www.nps.gov /noca/arthropod3.htm (9095 words)

	Terrestrial Planet Finder
		The Terrestrial Planet Finder (TPF) uses a small collection of high sensitivity telescopes (probably 4 large 3.5-meter telescopes) with revolutionary imaging technologies.
		Mars presently has a rather minimal atmosphere, but there is evidence that a thicker atmosphere with water vapor existed in the distant past.
		If a terrestrial planet is too close to its star, it loses water from its atmosphere and surface.
	www.terrestrial-planet-finder.com (452 words)

	Terrestrial Ecoregions -- Admiralty Islands lowland rain forests (AA0101)
		The interior forests around Mt. Dremsel are still intact and have been listed as an important area of terrestrial biodiversity in PNG by Beehler (1993).
		The Mt. Dremsel forests are listed as a protected area by WCMC (1997), but the category of protected area has not been determined (table 3).
		This text was originally published in the book Terrestrial ecoregions of the Indo-Pacific: a conservation assessment from Island Press.
	www.worldwildlife.org /wildworld/profiles/terrestrial/aa/aa0101_full.html (795 words)

	Encyclopedia article on Terrestrial planet [EncycloZine] (Site not responding. Last check: 2007-10-20)
		A terrestrial planet is a planet which is primarily composed of silicate rocks.
		One suspected terrestrial planet has been discovered orbiting Mu Arae.
		All other known extrasolar planets are extremely large, and are most likely to be gas giants.
	encyclozine.com /Terrestrial_planet (360 words)

	1995 Workshop: Solar Drivers of Interplanetary and Terrestrial Disturbances (Site not responding. Last check: 2007-10-20)
		There is a growing awareness by national and international agencies of the need to understand solar-terrestrial interactions.
		The 1995 Workshop concentrated on solar drivers of terrestrial effects in a format that should appeal to both theoreticians and observers.
		The Workshop had sessions devoted to solar drivers, the coronal-interplanetary interface, interplanetary propagation, the interplanetary-terrestrial interface and to correlating solar drivers with terrestrial effects.
	www.nso.edu /general/workshops/1995/index.html (365 words)

	terrestrial radiation - OneLook Dictionary Search
		Tip: Click on the first link on a line below to go directly to a page where "terrestrial radiation" is defined.
		Terrestrial radiation : NRC Glossary of Nuclear Terms -- [home, info]
		terrestrial radiation : US Envirionmental Protection Agency Terminology Reference System [home, info]
	www.onelook.com /?w=terrestrial+radiation&ls=a (110 words)

	NASA - IMAGE Science Center
		The IMAGE spacecraft was launched from Vandenberg AFB on March 25, 2000, at 20:34:43 UT. IMAGE is the first satellite mission dedicated to imaging the Earth's magnetosphere, the region of space controlled by the Earth's magnetic field and containing extremely tenuous plasmas of both solar and terrestrial origin.
		Invisible to standard astronomical observing techniques, these populations of ions and electrons have traditionally been studied by means of localized measurements with charged particle detectors, magnetometers, and electric field instruments.
		IMAGE is now in its fifth year of operation and continues to provide new insights into the workings of our space environment.
	image.gsfc.nasa.gov (219 words)

	Solar Terrestrial Probes
		The Solar Terrestrial Probes (STP) Program is part of NASA's Science Mission Directorate Sun-Earth Connection (SEC) theme.
		The primary goal of this theme is to understand our changing Sun and its effects on the Solar System, life and society.
		To identify, develop, infuse, and transfer technologies that enable or enhance opportunities for frequent scientific investigations while creating partnerships to ensure maximum scientific and economic benefit from the NASA Space Science Program.
	stp.gsfc.nasa.gov (234 words)

	Carbon Sequestration in Terrestrial Ecosystems, CSiTE
		Biological and Environmental Research established CSiTE, a research consortium, to perform fundamental research that will lead to acceptable methods to enhance carbon sequestration in terrestrial ecosystems as one component of a carbon management strategy.
		The goal of CSiTE is to discover and characterize links between critical pathways and mechanisms for creating larger, longer-lasting carbon pools in terrestrial ecosystems.
		Carbon sequestration in terrestrial ecosystems can be defined as the net removal of CO from the atmosphere into long-lived pools of carbon.
	csite.esd.ornl.gov (312 words)

	IBM Journal of R & D - Vol. 40, No. 1, 1996 - Terrestrial cosmic rays and soft errors
		In digital electronics, errors which are not caused by permanent damage to the circuits are referred to as soft errors, soft fails, or single-event upsets.
		This issue of the IBM Journal of Research and Development focuses on studies of soft errors in computer chips caused by cosmic rays at terrestrial altitudes.
		Soft errors caused by radioactive contaminants are also considered, but emphasis is placed on the experimental, theoretical, and modeling aspects of cosmic-ray-induced soft errors in computer chips.
	www.research.ibm.com /journal/rd40-1.html (293 words)

	Department of Terrestrial Magnetism (DTM) - Copyright Notice (Site not responding. Last check: 2007-10-20)
		All materials contained on this site are protected by United States copyright law and may not be reproduced, distributed, transmitted, displayed, published or broadcast without the prior written permission of the Department of Terrestrial Magnetism.
		You may download material from Department of Terrestrial Magnetism website for your personal, noncommercial use only.
		While the Department of Terrestrial Magnetism (DTM) has made every effort to ensure that the information on this site is as accurate as possible, it gives no guarantee that the material, information or publication made accessible is accurate, complete, current, or fit for any use.
	www.dtm.ciw.edu /content/view/61/84 (245 words)

	JARE DATA REPORTS:Terrestrial Biology (Site not responding. Last check: 2007-10-20)
		NO.152 (Terrestrial Biology 1) Microclimate data measured at the Yukidori Valley, Langhovde, Antarctica in 1988-1989, by S.Ohtani, H.Kanda and Y. Ino.
		NO.163 (Terrestrial Biology 2) Microclimate data measured at unmanned observation station, the Yukidori Valley, Langhovde, Antarctica in 1988-1989, by S.Ohtani, H.Kanda and Y. Ino.
		NO.178 (Terrestrial Biology 3) Microclogical data measured at biological hut, the Yukidori Valley, Langhovde, Antarctica in the austral summer of 1987-1988 and 1988-1989, by S.Ohtani, H.Kanda, Y.Ohyama, Y.Mochida, H.Sugawara and Y. Ino.
	www.nipr.ac.jp /library/DRtbio.html (77 words)

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