permanent improvement
21Dental amalgam controversy — Dental amalgam filling The dental amalgam controversy refers to the conflicting views over the use of amalgam as a filling material mainly because it contains the element mercury. The concern centers on the health effects of toxicity or allergy… …
22California State Route 160 — State Route 160 North Sacramento Freeway, River Road …
23Ecotechnology — is an applied science that seeks to fulfill human needs while causing minimal ecological disrupution, by harnessing and subtly manipulating natural forces to leverage their beneficial effects. Ecotechnology integrates two complementary fields of… …
24George Stanley Faber — (October 25, 1773 ndash; January 27, 1854) (often written G. S. Faber) was an Anglican theologian who wrote many books on theological subjects. He was a typologist, who believed that all the world s myths were corrupted versions of the original… …
25History of Cologne — The History of Cologne, Germany s oldest major city, can be broken into several periods. Roman In 39 BC, the tribe of the Ubii entered into an agreement with the Roman forces and settled on the left bank of the Rhine. Their headquarters was… …
26Wallace Carothers — Infobox Scientist name = Wallace Hume Carothers box width = image width =150px caption = Wallace Hume Carothers birth date = April 27, 1896 birth place = Burlington, Iowa death date = April 29, 1937 death place = residence = citizenship =… …
27Robert Cecil, 3rd Marquess of Salisbury — Lord Salisbury redirects here. For other holders of the title, see Marquess of Salisbury. Infobox Prime Minister honorific prefix = The Most Honourable name = The Marquess of Salisbury honorific suffix = KG, GCVO, PC imagesize = 225px order… …
28Appalachian State University — Infobox University image size = 161px name = Appalachian State University motto = Esse quam videri (Latin) mottoeng = To be, rather than to seem established = 1899 type = Public Regional University endowment = US $62.2 million… …
29River engineering — The Los Angeles River is extensively channelized with concrete embankments. River engineering is the process of planned human intervention in the course, characteristics or flow of a river with the intention of producing some defined benefit.… …
30Commissioner v. Idaho Power Co. — Commissioner v. Idaho Power Co. Supreme Court of the United States Argued February 27, 1974 Decided …
