flat-grinding machine
101Gramophone record — A 12 inch (30 cm) 33⅓ rpm record (left), a 7 inch 45 rpm record (right), and a CD (above) A gramophone record, commonly known as a phonograph record (in American English), vinyl record (in reference to vinyl, the material most commonly used after …
102Gristmill — Allied Mills flour mill on the banks of the Manchester Ship Canal The terms gristmill or grist mill (also: corn mill or flour mill) can refer either to a building in which grain is ground into flour, or to the grinding mechanism itself …
103English Wheel — The English Wheel (or Wheeling Machine British English usage), is typically a manually operated metalworking apparatus, (used in car restoration, NASCAR racing car construction, and aviation amongst other uses), that allows a craftsman to form… …
104Mechanical 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 ( …
105Earth Sciences — ▪ 2009 Introduction Geology and Geochemistry The theme of the 33rd International Geological Congress, which was held in Norway in August 2008, was “Earth System Science: Foundation for Sustainable Development.” It was attended by nearly… …
106Stegosaurus — Filozoa Stegosaurus Temporal range: Late Jurassic, 155–150 Ma …
107Snowboard — A snowboard is a thin, hourglass shaped board ridden down a sloped section of earth covered in snow. It is often thought of as the winter equivalent of a wakeboard, as the rider s feet are bound to the board via bindings. Snowboards generally… …
108Spirit rover — (MER A) Artist s concept of Rover on Mars Operator NASA Mission type Rover Launch date …
109Sand casting — Sand casting, also known as sand molded casting, is a metal casting process characterized by using sand as the mold material. It is relatively cheap and sufficiently refractory even for steel foundry use. A suitable bonding agent (usually clay)… …
110Metallography — A micrograph of bronze revealing a cast dendritic structure Metallography is the study of the physical structure and components of metals, typically using microscopy. Ceramic and polymeric materials may also be prepared using metallographic… …
