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In ancient Greek medicine, each of the four humours became associated with an element. Blood was the humor identified with air, since both were hot and wet. Other things associated with air and blood in ancient and medieval medicine included the season of spring, since it increased the qualities of heat and moisture; the sanguine temperament (of a person dominated by the blood humour ...
Air pollution is the introduction of airborne chemicals, particulate matter or biological materials that cause harm or discomfort to organisms. [53] The population growth , industrialization and motorization of human societies have significantly increased the amount of airborne pollutants in the Earth's atmosphere, causing noticeable problems ...
Air (South) represents musoni, the period of conception that takes place during spring. Fire (East) represent kala , the period of birth that takes place during summer. Earth (North) represents tukula , the period of maturity that takes place during fall.
at each geopotential altitude, where g is the standard acceleration of gravity, and R specific is the specific gas constant for dry air (287.0528J⋅kg −1 ⋅K −1). The solution is given by the barometric formula. Air density must be calculated in order to solve for the pressure, and is used in calculating dynamic pressure for moving vehicles.
Pancha Bhuta (/pəɲt͡ʃəbʱuːt̪ᵊ/ ,Sanskrit: पञ्चभूत; pañca bhūta), five elements, is a group of five basic elements, which, in Hinduism, is the basis of all cosmic creation. [1]
La Sylphide Bourbon, A.M. Bininger & Co. Bourbon advertising label in the shape of a glass showing a man pursuing three sylphs. The Swiss German physician and alchemist Paracelsus first coined the term sylph in the 16th century to describe an air spirit in his overarching scheme of elemental spirits associated with the four Classical elements.
This temperature inversion is the opposite of what is normally the case; air is usually warmer close to the surface, and cooler higher up. In calm weather, a layer of significantly warmer air can rest over colder dense air, forming an atmospheric duct which acts like a refracting lens, producing a series of both inverted and erect images.
Atmospheric chemistry is a branch of atmospheric science that studies the chemistry of the Earth's atmosphere and that of other planets. This multidisciplinary approach of research draws on environmental chemistry, physics, meteorology, computer modeling, oceanography, geology and volcanology, climatology and other disciplines to understand both natural and human-induced changes in atmospheric ...