these again are more expensive

  • 21Nottingham and District Tramways Company Limited — was a tramway operator from 1875 to 1897 based in Nottingham in the United Kingdom. Contents 1 Nottingham Tramways Company 1872 1875 2 Nottingham and District Tramways Company Limited 1875 1897 2.1 …

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  • 22conservation — conservational, adj. /kon seuhr vay sheuhn/, n. 1. the act of conserving; prevention of injury, decay, waste, or loss; preservation: conservation of wildlife; conservation of human rights. 2. official supervision of rivers, forests, and other… …

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  • 23Inkjet printer — Inkjet printers operate by propelling variably sized droplets of liquid or molten material (ink) onto almost any sized page. They are the most common type of computer printer for the general consumerFact|date=November 2007 due to their low cost,… …

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  • 24Education in the People's Republic of China — This article is about education in the People s Republic of China. See Education in Hong Kong and Education in Macau for education in Hong Kong and Macau, respectively. For education in the Republic of China (Taiwan), see Education in the… …

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  • 25Hydrogen economy — The hydrogen economy is a proposed system of delivering energy using hydrogen. The term hydrogen economy was coined by John Bockris during a talk he gave in 1970 at General Motors (GM) Technical Center.[1] Hydrogen advocates promote hydrogen as… …

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  • 26Lathe (metal) — Center lathe with DRO and chuck guard. Size is 460 mm swing x 1000 mm between centers A metal lathe or metalworking lathe is a large class of lathes designed for precisely machining relatively hard materials. They were originally designed to… …

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  • 27Nintendo DS storage devices — Main article: Nintendo DS accessories The internals of an Acekard 2.1 DS flashcart shown below to a quarter and Micro SD card. Nintendo DS storage devices are some of the devices used to store a licensed developer s work in progress images,… …

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  • 28Satellite Internet access — Satellite Internet services are used in locations where terrestrial Internet access is not available and in locations which move frequently. Internet access via satellite is available worldwide, including vessels at sea and mobile land… …

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  • 29Sand 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)… …

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  • 30Photographic filter — Four photographic filters. Clockwise, from top left, an infrared hot mirror filter, a polarising filter, and a UV filter. The larger filter is a polariser for Cokin style filter mounts. In photography and videography, a filter is a camera… …

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