hydrogen pick-up
71Hard water — is the type of water that has high mineral content (in contrast with soft water ). Hard water minerals primarily consist of calcium (Ca2+), and magnesium (Mg2+) metal cations, and sometimes other dissolved compounds such as bicarbonates and… …
72Mini (BMW) — Infobox Brand logo= name=Mini type=Automotive brand currentowner=flagicon|DE BMW AG origin=flagicon|UK United Kingdom discontinued= related= markets=Global assembly = flagicon|UK Cowley, England previousowners=British Leyland Rover Group… …
73Wind power in Spain — Spain is one of the three world’s largest users of wind power with an installed capacity of 15,515 MW at January 2008.cite web | url=http://www.energias renovables.com/paginas/Contenidosecciones.asp?ID=14 Cod=12262 Tipo= Nombre=Noticias |… …
74Spa bath — Note that the term spa bath can also refer to a spa or hot tub. A spa bath basin of water having a temperature of up to 45 degrees Celsius (#expr: 45 *9/5+32 Fahrenheit), containing salts, herbal extracts or herbal oils, in which the hands, feet… …
75Wind — For other uses, see Wind (disambiguation). Wind, from the …
76Glossary of environmental science — This is a glossary of environmental science.Environmental science is the study of interactions among physical, chemical, and biological components of the environment. Environmental science provides an integrated, quantitative, and… …
77mass spectrometry — or mass spectroscopy Analytic technique by which chemical substances are identified by sorting gaseous ions by mass using electric and magnetic fields. A mass spectrometer uses electrical means to detect the sorted ions, while a mass spectrograph …
78Copper wire and cable — Copper has been used in electric wiring since the invention of the electromagnet and the telegraph in the 1820s.[1][2] The invention of the telephone in 1876 proved to be another early boon for copper wire.[3] Today, despite competition from… …
79Alvarez , Luis Walter — (1911–1988) American physicist Alvarez, the son of a research physiologist, was born in San Francisco and educated at the University of Chicago where he gained his PhD in 1936. He moved soon after to the University of California, Berkeley. Apart… …
80Earwax — Wet type human earwax on a cotton swab Earwax, also known by the medical term cerumen, is a yellowish waxy substance secreted in the ear canal of humans and other mammals. It protects the skin of the human ear canal, assists in cleaning and… …
