etching needle
51style — [stīl] n. [ME < L stilus (sp. infl. by unrelated Gr stylos, pillar) < IE base * (s)tei , pointed > L stimulus] 1. a sharp, slender, pointed instrument used by the ancients in writing on wax tablets 2. any of several devices, etc. similar …
52Maxime Lalanne — François Antoine Maxime Lalanne (November 27, 1827 July 29, 1886) was a French artist known for his etchings and charcoal drawings (fusain). Contents 1 Early life 2 Entry into artistic career 3 Move to Paris 4 Prints …
53Unusual types of gramophone records — The overwhelming majority of records manufactured have been of certain sizes (7, 10, or 12 inches), playback speeds (33⅓, 45, or 78 RPM), and appearance (round black discs). However, since the commercial adoption of the gramophone record, a… …
54Drypoint — Woman in Cafe, drypoint by Lesser Ury showing the typical rich blurred line of drypoint. Drypoint is a printmaking technique of the intaglio family, in which an image is incised into a plate (or matrix ) with a hard pointed needle of sharp metal… …
55Printed circuit board — Part of a 1983 Sinclair ZX Spectrum computer board; a populated PCB, showing the conductive traces, vias (the through hole paths to the other surface), and some mounted electrical components A printed circuit board, or PCB, is used to… …
56Nerve guidance conduit — A nerve guidance conduit (also referred to as an artificial nerve conduit or artificial nerve graft, as opposed to an autograft) is an artificial means of guiding axonal regrowth to facilitate nerve regeneration and is one of several clinical… …
57Edmund Blampied — {|align= right Infobox Person name = Edmund Blampied imagesize = 250px caption = The artist in 1938 birth date = March 30, 1886 birth place = Saint Martin, Jersey death date = August 26, 1966 death place = St Aubin, Jersey education = Trinity… …
58Aquatint — is an intaglio printmaking technique, a variant of etching. Intaglio printmaking makes marks on the matrix (in the case of aquatint, a copper or zinc plate) that are capable of holding ink. The inked plate is passed through a printing press… …
59Mechanical filter — Figure 1. A mechanical filter made by the Kokusai Electric Company intended for selecting the narrow 2 kHz bandwidth signals in SSB radio receivers. It operates at 455 kHz, a common IF for these receivers, and is dimensioned 45×15×15 mm ( …
60Mary and Matthew Darly — British print from copper engraving by Mary and Matthew Darly (from a drawing by Henry Angelo), part of a famous 1771 1773 series on Macaronis by the Darlys. The Mungo Macaroni (Mungo a name of a slave character from a comic opera) is based on… …
