electrical sheet
91Duplicating machines — were the predecessors of modern document reproduction technology. They have now been replaced by digital duplicators, scanners, laser printers and photocopiers, but for many years they were the primary means of reproducing documents for limited… …
92Spirit duplicator — A spirit duplicator (also referred to as a Ditto machine in the United States or Banda machine in the United Kingdom) was a low volume printing method used mainly by schools and churches. It was also used by members of science fiction fandom and… …
93Polycarbonate — Repeating chemical structure unit of Polycarbonate made from bisphenol A Ph …
94Compact fluorescent lamp — Low energy light bulb redirects here. For other low energy bulbs, see LED lamp. The tubular type compact fluorescent lamp is one of the most popular types in Europe …
95Electromagnetic forming — A pinched aluminium can, produced from a pulsed magnetic field created by rapidly discharging 2 kilojoules from a high voltage capacitor bank into a 3 turn coil of heavy gauge wire. Electromagnetic forming (EM forming or magneforming) is a type… …
96protein — proteinaceous /proh tee nay sheuhs, tee i nay /, proteinic, proteinous, adj. /proh teen, tee in/, n. 1. Biochem. any of numerous, highly varied organic molecules constituting a large portion of the mass of every life form and necessary in the… …
97river — river1 riverless, adj. riverlike, adj. /riv euhr/, n. 1. a natural stream of water of fairly large size flowing in a definite course or channel or series of diverging and converging channels. 2. a similar stream of something other than water: a… …
98Copper — For other uses, see Copper (disambiguation) …
99Induction cooker — Induction stove (top view) …
100Manganin — is a trademarked name for an alloy of typically 86% copper, 12% manganese, and 2% nickel. It was first developed by Edward Weston in 1892, improving upon his Constantan (1887). Manganin foil and wire is used in the manufacture of resistors,… …
