rubbing plate
21Etching — For other uses of etch or etching, see Etching (disambiguation), for the history of the method, see old master prints. The Soldier and his Wife. Etching by Daniel Hopfer, who is believed to have been the first to apply the technique to… …
22photoengraving — /foh toh en gray ving/, n. 1. a photographic process of preparing printing plates for letterpress printing. 2. a plate so produced. 3. a print made from it. [1870 75; PHOTO + ENGRAVING] * * * Any of several processes for producing printing plates …
23Clinker (boat building) — A Viking longship, displaying the overlapping planks that characterize clinker construction. Clinker building is a method of constructing hulls of boats and ships by fixing wooden planks and, in the early nineteenth century, iron plates to each… …
24metalwork — metalworker, n. /met l werrk /, n. objects made of metal. [1840 50; METAL + WORK] * * * Useful and decorative objects fashioned of various metals. The oldest technique is hammering. After с 2500 BC, casting was also used, molten metal being… …
25Comparison of cricket and baseball — Cricket and baseball are the best known members of a family of related bat and ball games. While many of their rules, terminology, and strategies are similar, there are many differences some subtle, some major between the two games. Other present …
26Electrophorus — An electrophorus is a capacitive generator used to produce electrostatic charge via the process of electrostatic induction. It was invented in 1764 by Swedish professor Johan Carl Wilcke, [cite book last=Pancaldi first=Giuliano year=2003… …
27Intaglio (printmaking) — For other uses, see Intaglio (disambiguation). Depressions are cut into a printing plate. The plate shown here is not to scale: the grooves can be fractions of a millimetre wide …
28Nanotube nanomotor — A device generating linear or rotational motion using carbon nanotube(s) as the primary component, is termed a nanotube nanomotor. Nature already has some of the most efficient and powerful kinds of nanomotors. Some of these natural biological… …
29Stridulation — is the act of producing sound by rubbing together certain body parts. This behavior is mostly associated with insects, but other animals are known to do this as well, such as a number of species of fishes, snakes and spiders. The mechanism is… …
30Strake — A strake is:#part of a boat or ship. It is a horizontal strip of wooden planking or steel plating on the exterior hull of a vessel, running longitudinally along the vessel from the stem to the stern. #a device for controlling air flow over an… …
