there are other abrasive materials whose
71Punch (tool) — For punches used in punch presses, see Punching. A punch is a hard metal rod with a shaped tip at one end and a blunt butt end at the other, which is usually struck by a hammer. Punches are used to drive objects, such as nails, or to form an… …
72Mushroom stones — The Stone Mushrooms near Beli Plast Village in Bulgaria …
73Anthropology and Archaeology — ▪ 2009 Introduction Anthropology Among the key developments in 2008 in the field of physical anthropology was the discovery by a large interdisciplinary team of Spanish and American scientists in northern Spain of a partial mandible (lower… …
74Valve — This article is about the flow control device. For the game developer, see Valve Corporation. For the electronic component, see Vacuum tube. For other uses, see Valve (disambiguation). These water valves are operated by handles. A valve is a… …
75Gramophone 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 …
76Utility knife — Boxcutter and box cutter redirect here. For the electronic music artist, see Boxcutter (musician). For season four premiere of Breaking Bad, see Box Cutter (Breaking Bad). A utility knife is a knife used for general or utility purposes.[1] The… …
77Pastel — For other uses, see Pastel (disambiguation). Commercial pastels Pastel is an art medium in the form of a stick, consisting of pure powdered pigment and a binder. The pigments used in pastels are the same as those used to produce all colored art… …
78Nice (WIPO) — The Nice Classification of Goods and Services is an Agreement resulting from the Diplomatic Conference of 1957 in Nice, France, and is updated every five years. It is an authoritative classification of goods and services for use in registering… …
79John R. Bolton — 25th United States Ambassador to the United Nations In office August 1, 2005 – December 9, 2006 President George W. Bush Preceded by …
80Typewriter — Mechanical desktop typewriters, such as this Underwood Five, were long time standards of government agencies, newsrooms, and offices …
