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71Speeds and feeds — A line drawing showing some basic concepts of speeds and feeds in the context of lathe work. The angular velocity of the workpiece (rev/min) is called the spindle speed by machinists. Its tangential linear equivalent at the tool cutter interface… …
72Science and invention in Birmingham — Birmingham is the second largest city in the United Kingdom. It is one of the country s principal industrial centres and has an impressive history of industrial and scientific innovation.16th century1547: Although no record is kept to indicate… …
73Frame and panel — construction (also called rail and stile ) is a woodworking technique often used in the making of doors, wainscoting, and other decorative features for cabinets, furniture, and homes. The basic idea is to capture a floating panel within a sturdy… …
74London and Greenwich Railway — The London and Greenwich Railway was opened in London between 1836 and 1838. It was the first steam railway to have a terminus in the capital, and the first of any to be built specifically for passenger service.OriginsThe idea for the line came… …
75Architecture of Bosnia and Herzegovina — The architecture of Bosnia and Herzegovina is largely influenced by four major periods where political and social changes determined the creation of distinct cultural and architectural habits of the region. Contents 1 Medieval period 2 Ottoman… …
76Design elements and principles — describe fundamental ideas about the practice of good visual design that are assumed to be the basis of all intentional visual design strategies. The elements form the vocabulary of the design, while the principles constitute the broader… …
77Lead came and copper foil glasswork — This article is on the techniques of lead came and copper foil glasswork. For a general overview of stained glass art, see stained glass. A typical copper foil Tiffany lamp, with a jonquil daffodil design Lead came and copper foil glasswork are… …
78Cold Regions Research and Engineering Laboratory — Established 1 February 1961 (1 February 1961) Research Type …
79Violin construction and mechanics — A violin consists of a body or corpus, a neck, a bridge, a soundpost, four strings, and various fittings. The fittings are the tuning pegs, tailpiece and tailgut, endpin, possibly one or more fine tuners on the tailpiece, and perhaps a chinrest,… …
80Dutch inventions and discoveries — The Dutch people have a history and tradition in inventing and discovery. Dutch scientists and engineers have made a remarkable contribution to human progress as a whole, from something as simple as the sawmill to microbiology and artificial… …
