photometer head
21Metering mode — In photography, the metering mode refers to the way in which a camera determines the exposure. Digital metering feedback …
22List of Dutch Americans — This is a list of notable Dutch Americans.ListArts and literature*Willem De Kooning (1904 1997), famous abstract expressionist painter *Barthold Fles (1902 1989), literary agent, author, editor, translator and publisher *Charles Fort (1874 1932) …
23Dutch American — Nederlandse Amerikanen …
24coal — coalless, adj. /kohl/, n. 1. a black or dark brown combustible mineral substance consisting of carbonized vegetable matter, used as a fuel. Cf. anthracite, bituminous coal, lignite. 2. a piece of glowing, charred, or burned wood or other… …
25telescope — /tel euh skohp /, n., adj., v., telescoped, telescoping. n. 1. an optical instrument for making distant objects appear larger and therefore nearer. One of the two principal forms (refracting telescope) consists essentially of an objective lens… …
26Physical Sciences — ▪ 2009 Introduction Scientists discovered a new family of superconducting materials and obtained unique images of individual hydrogen atoms and of a multiple exoplanet system. Europe completed the Large Hadron Collider, and China and India took… …
27scan — 1. To survey by traversing with an active or passive sensing device. 2. The image, record, or data obtained by scanning, usually identified by the technology or device employed; e.g., CT s., radionuclide s …
28Lithium Therapy: History of — (from 1949) Prehistory: On the basis of his views about excess uric acid causing depression (see Depression: Emergence: periodical melancholia [1886]), Danish physician Carl Georg Lange (1834–1900) described in 1886 the systematic use of… …
29measuring device — noun instrument that shows the extent or amount or quantity or degree of something • Syn: ↑measuring instrument, ↑measuring system • Hypernyms: ↑instrument • Hyponyms: ↑accelerometer, ↑actinometer, ↑ …
30measuring instrument — noun instrument that shows the extent or amount or quantity or degree of something • Syn: ↑measuring system, ↑measuring device • Hypernyms: ↑instrument • Hyponyms: ↑accelerometer, ↑actinometer, ↑ …
