The dissociation or decomposition of a molecule by heat,
1 Elements diffused as a halo around an ore body, identified by geochemical prospecting. These may be dilute concentrations of metals also present in the ore body, or elements found in association with ore bodies but not of primary interest themselves. 2 Minerals identified in soil and stream gravel which are common accessories to minerals of economic significance,
A transmitted chart with lines and details to indicate particular characteristics of a transmission system, used in TV for general testing purposes. Also test card, test chart.
TN for a three-colour TV tube using a vertical grating and vertical phosphor stripes. A common electron gun assembly and deflexion system is used with three cathodes to provide the electron beams. Cf shadow
Aerological diagram in which the principal rectangular axes are temperature T and entropy : hence T-gram. Equal area represents equal energy at all points.
A flap which is mounted below and behind the wing trailing edge so that it normally trails at neutral incidence and is rotated to various positive angles of incidence to increase lift, there always being a gap between the wing undersurface and the flap leading edge,
An order of minute insects with asymmetrical piercing mouthparts. prothorax large and free, tarsi having a protrusible adhesive terminal vesicle. Some are serious pests causing malformation of plants and sometimes inhibiting the development of fruit. Thrips.
A stratified epithelium consisting of only three or four layers of cells. Able to stretch, it lines eg the ureters, the bladder, and the pelvis of the kidney in vertebrates,
Uses heat- sensitive paper, producing visible characters by the action of heated wires,
Pertaining to three molecules,