telluric lines

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• Telluric — (from the Latin tellus , earth ) may refer to several things related to the Earth: *Telluric planet, an Earth like planet primarily composed of silicate rocks *Telluric current, a natural electrical current in the Earth s crust *Telluric… …   Wikipedia

• telluric line — noun any of the absorption lines or bands added to the spectrum of a heavenly body by various substances in the earth s atmosphere the telluric lines of nitrogen, oxygen, water vapor …   Useful english dictionary

• Telluric contamination — is contamination of the astronomical spectra by the Earth s atmosphere. Interference with astronomical observationsMost astronomical observations are conducted by measuring photons (electromagnetic waves) which originate beyond the sky. The… …   Wikipedia

• Telluric current — A telluric current (from Latin tellūs , earth ) is an electric current which moves underground or through the sea. Telluric currents result from both natural causes and human activity, and the discrete currents interact in a complex pattern. The… …   Wikipedia

• Angelo Secchi —     Angelo Secchi     † Catholic Encyclopedia ► Angelo Secchi     Astronomer, b. at Reggio in Emilia, Italy, 18 June, 1818; d. 26 Feb., 1878. He was the son of a joiner, Antonio Secchi. His mother (née Luise Belgieri), a practical middle class… …   Catholic encyclopedia

• Earth radiation — is a theoretical geophysical phenomenon described primarily by the German authors Manfred Curry and Ernst Hartmann. They both describe a mystic force field (similar to Odic force, Mana, Qi) that supposedly covers the earth at regular intervals… …   Wikipedia

• Extinction (astronomy) — Extinction is a term used in astronomy to describe the absorption and scattering of electromagnetic radiation by matter (dust and gas) between an emitting astronomical object and the observer. Interstellar extinction also called Galactic… …   Wikipedia

• Italy — • In ancient times Italy had several other names: it was called Saturnia, in honour of Saturn; Enotria, wine producing land; Ausonia, land of the Ausonians; Hesperia, land to the west (of Greece); Tyrrhenia, etc. The name Italy, which seems to… …   Catholic encyclopedia

• Magnetotellurics — Magnetotelluric station Magnetotellurics (MT) is an electromagnetic geophysical method of imaging the earth s subsurface by measuring natural variations of electrical and magnetic fields at the Earth s surface. Investigation depth ranges from… …   Wikipedia

• Earth battery — An Earth battery is composed of a pair of electrodes made of two dissimilar metals, such as iron and copper, which are buried in the soil or immersed in the sea. A device that is placed in water is labeled a sea battery . It can act as a receiver …   Wikipedia

• Earth — This article is about the planet. For other uses, see Earth (disambiguation). Earth   …   Wikipedia