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13 godz. temu · Hubble's law, also known as the Hubble–Lemaître law, is the observation in physical cosmology that galaxies are moving away from Earth at speeds proportional to their distance. In other words, the farther they are, the faster they are moving away from Earth. The velocity of the galaxies has been determined by their redshift, a shift of the light they emit toward the red end of the visible ...
13 godz. temu · Particulates or atmospheric particulate matter (see below for other names) are microscopic particles of solid or liquid matter suspended in the air.The term aerosol commonly refers to the particulate/air mixture, as opposed to the particulate matter alone. Sources of particulate matter can be natural or anthropogenic. They have impacts on climate and precipitation that adversely affect human ...
13 godz. temu · Wind power is the use of wind energy to generate useful work. Historically, wind power was used by sails, windmills and windpumps, but today it is mostly used to generate electricity.This article deals only with wind power for electricity generation. Today, wind power is generated almost completely with wind turbines, generally grouped into wind farms and connected to the electrical grid.
13 godz. temu · Electroencephalography (EEG) is a method to record an electrogram of the spontaneous electrical activity of the brain.The biosignals detected by EEG have been shown to represent the postsynaptic potentials of pyramidal neurons in the neocortex and allocortex. It is typically non-invasive, with the EEG electrodes placed along the scalp (commonly called "scalp EEG") using the International 10 ...
13 godz. temu · Addis Ababa (/ ˌ æ d ɪ s ˈ æ b ə b ə /; Oromo: Finfinnee, lit. 'fountain of hot mineral water', Amharic: አዲስ አበባ, lit. 'new flower' [adˈdis ˈabəba] ⓘ) is the capital and largest city of Ethiopia. In the 2007 census, the city's population was estimated to be 2,739,551 inhabitants. Addis Ababa is a highly developed and important cultural, artistic, financial and ...
