bridge-type hammer
31Charles Wheatstone — Wheatstone, drawn by Samuel Laurence in 1868 Born 6 …
32List of coalition military operations of the Iraq War — Operation Aloha redirects here. For the band, see Operation Aloha (band). Nordlicht redirects here. For the Kriegsmarine ship, see SS Nordlicht. Operation Falcon Freedom redirects here. For the United Nations Security Council Resolution 1973… …
33building construction — Techniques and industry involved in the assembly and erection of structures. Early humans built primarily for shelter, using simple methods. Building materials came from the land, and fabrication was dictated by the limits of the materials and… …
34List of words having different meanings in British and American English: A–L — Differences between American and British English American English …
35Guitar — Infobox Instrument name=Guitar names= classification=String instrument (plucked, nylon stringed guitars usually played with fingerpicking, and steel , etc. usually with a pick.) range= (a regularly tuned guitar) related=*Bowed and plucked string… …
36Water wheel — This article is about the machine for converting energy of flowing or falling water. For paddle wheels used to propel watercraft, see paddle wheel ship. For wheels used solely to lift water, see Noria. For factories or industries driven by water… …
37Rivet — A rivet is a mechanical fastener. Before it is installed it consists of a smooth cylindrical shaft with a head on one end. The end opposite the head is called the buck tail. On installation the rivet is placed in a pre drilled hole. Then the tail …
38Tapping — Figure 1 Tapping à une main Le majeur de la main droite frappe le manche et tire légèrement la corde pour faire sonner deux notes à la suite (celle de la case frappée puis celle de la case où l annulaire de la main gauche est posé). Seule la main …
39Mathematics and Physical Sciences — ▪ 2003 Introduction Mathematics Mathematics in 2002 was marked by two discoveries in number theory. The first may have practical implications; the second satisfied a 150 year old curiosity. Computer scientist Manindra Agrawal of the… …
40Deepwater Horizon oil spill — 2010 oil spill and BP oil spill redirect here. For other oil spills in 2010, see 2010 oil spill (disambiguation). For the 2006 oil spill involving BP, see Prudhoe Bay oil spill. For the drilling rig and explosion, see Deepwater Horizon… …
