Solar cycle — The solar cycle, or the solar magnetic activity cycle, is the main source of periodic variation of all solar phenomena driving variations in space weather. [ [http://www7.nationalacademies.org/ssb/SSB Space weather97.pdf Space Weather: A Research … Wikipedia
Solar chimney — This article refers to a device for ventilation. For the power generation technology, see Solar updraft tower. A solar chimney often referred to as a thermal chimney is a way of improving the natural ventilation of buildings by using convection… … Wikipedia
Radiation hardening — is a method of designing and testing electronic components and systems to make them resistant to damage or malfunctions caused by ionizing radiation (particle radiation and high energy electromagnetic radiation),[1] such as would be encountered… … Wikipedia
Solar air conditioning — refers to any air conditioning (cooling) system that uses solar power. This can be done through passive solar, photovoltaic conversion (sun to electricity), or solar thermal energy conversion. The U.S. Energy Independence and Security Act of… … Wikipedia
Solar transit — In astronomy, solar transit is when anything passes between the Sun and the Earth. This mainly includes the planets Mercury and Venus. A solar eclipse is also a solar transit of the Moon, but technically only if it does not cover the entire disc… … Wikipedia
solar noise — noun : radio noise emitted by the sun and its atmosphere * * * solar noise noun A hissing background noise heard in radio communication, due to radiation from the sun and its atmosphere • • • Main Entry: ↑solar … Useful english dictionary
Ionizing radiation — consists of highly energetic particles or waves that can detach (ionize) at least one electron from an atom or molecule. Ionizing ability depends on the energy of the impinging individual particles or waves, and not on their number. A large flood … Wikipedia
Cosmic microwave background radiation — CMB and Cosmic background radiation redirect here. For other uses see CMB (disambiguation) and Cosmic background (disambiguation). Physical cosmology … Wikipedia
Antenna noise temperature — In telecommunication, antenna noise temperature is the temperature of a hypothetical resistor at the input of an ideal noise free receiver that would generate the same output noise power per unit bandwidth as that at the antenna output at a… … Wikipedia
Saulės spinduliuotės triukšmas — statusas T sritis radioelektronika atitikmenys: angl. solar radiation noise vok. Sonnenrauschen, n rus. шум радиоизлучения Солнца, m pranc. bruit de rayonnement solaire, m … Radioelektronikos terminų žodynas