global decomposition
61Greenhouse gas remediation — projects are a type of geoengineering and seek to remove greenhouse gases from the atmosphere, and thus tackle the root cause of global warming. These techniques either directly remove greenhouse gases, or alternatively seek to influence natural… …
62Primary production — For other uses, see Primary production (economics). Global oceanic and terrestrial photoautotroph abundance, from September 1997 to August 2000. As an estimate of autotroph biomass, it is only a rough indicator of primary production potential,… …
63Applied Foresight Network — The Applied Foresight Network (AFN) is a global web of university based centres connected by a network of forums for professors, students, teachers, and concerned citizens. The AFN supports informed discussion and social action on issues of… …
64Peat — is an accumulation of partially decayed vegetation matter. Peat forms in wetlands or peatlands , variously called bogs , moors , muskegs , pocosins , mires , and peat swamp forests . By volume there is about 4 trillion m³ of peat in the world… …
65Sol (pédologie) — Pour les articles homonymes, voir Sol. Le sol représente la couche superficielle, meuble, de la croûte terrestre, résultant de la transformation de la roche mère, enrichie par des apports organiques. Il est à la fois le support et le produit du… …
66ONDES (physique) — Le concept d’onde est l’un des plus universels de la physique mathématique. Ce dernier, élaboré au XVIIe siècle, lorsque la division entre mathématiques et physique (et philosophie aussi) n’avait pas le caractère institutionnel que nous lui… …
67SÉMANTIQUE — «La sémantique, ou comment s’en débarrasser»: jusqu’à une époque récente, l’étude du sens était volontiers considérée comme constituant pour la linguistique une sorte de rejeton indésirable, au nom sans doute de ce réalisme naïf «qui porte à… …
68Wind wave model — NOAA Wavewatch III 120 hour Forecast for the North Atlantic In fluid dynamics, wind wave modeling describes the effort to depict the sea state and predict the evolution of the energy of wind waves using numerical techniques. These simulations… …
69Matrix (mathematics) — Specific elements of a matrix are often denoted by a variable with two subscripts. For instance, a2,1 represents the element at the second row and first column of a matrix A. In mathematics, a matrix (plural matrices, or less commonly matrixes)… …
70Gunpowder — For other meanings, see gunpowder (disambiguation). Black powder for muzzleloading rifles and pistols in FFFG granulation size. Coin (diameter 24 mm) for comparison. Gunpowder, also known since in the late 19th century as black powder, was the… …
