ventilation cavity
121Nuclear power accidents by country — The abandoned city of Pripyat, Ukraine with the Chernobyl nuclear power plant in the distance. 57 accidents have occurred since the Chernobyl disaster in 1986. Two thirds of these mishaps occurred in the US.[1] The French Atomic Energy Agency… …
122Nuclear reactor accidents in the United States — According to a 2010 survey of energy accidents, there have been at least 56 accidents near nuclear reactors in the United States (defined as incidents that either resulted in the loss of human life or more than US$50,000 of property damage). The… …
123Silver — This article is about the chemical element. For the color, see Silver (color). For other uses, see Silver (disambiguation). palladium ← silver → cadmium …
124Longwall mining — is a form of underground coal mining where a long wall (typically about 250 400 m long) of coal is mined in a single slice (typically 1 2 m thick). The longwall panel (the block of coal that is being mined) is typically 3 4 km long and 250 400 m… …
125Thoracentesis — Interventions infobox Name = PAGENAME ICD10 = ICD9 = 34.91 OtherCodes = OPCS4.2|T|12|.3 Thoracentesis (also known as thoracocentesis or pleural tap) is an invasive procedure to remove fluid or air from the pleural space for diagnostic or… …
126Origin of birds — For the book by Gerhard Heilmann, see The Origin of Birds (book). The famous Berlin specimen of Archaeopteryx lithographica The origin of birds is a contentious and central topic within evolutionary biology. A close relationship between birds and …
127Pennyland project — The Pennyland project was a scientifically controlled experiment on an estate of 177 houses in the Pennyland district of Milton Keynes, Buckinghamshire, United Kingdom, to compare UK and Danish building energy efficiency standards. Although… …
128Bathhouse Row — Infobox nrhp | name =Bathhouse Row nrhp type = nhl caption = Skylight in Fordyce bathhouse location= Hot Springs, Arkansas lat degrees = 34 | lat minutes = 30 | lat seconds = 49 | lat direction = N long degrees = 93 | long minutes = 3 | long… …
