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Grignard reagent

(Encyclopedia) Grignard reagentGrignard reagentgrēnyärdˈ rēāˈjənt [key], any of an important class of extremely reactive chemical compounds used in the synthesis of hydrocarbons, alcohols, carboxylic…

Orbiting Geophysical Observatory

(Encyclopedia) Orbiting Geophysical Observatory (OGO), series of six orbiting observatories (see observatory, orbiting) launched between 1964 and 1969 by the National Aeronautics and Space…

Weather: Frontal Attack

Frontal AttackWeatherOn Another FrontMass AppealPutting Up a FrontFrontal AttackStorms on the FrontTelling What's Next Air masses generate their own types of weather, but their interactions on a…

Fridtjof Nansen

Fridtjof Nansen was a polar explorer and statesman whose achievements made him a Norwegian hero at the turn of the 20th century. A student of zoology, Nansen's first polar experience was in 1882,…

A Warming Ocean

Global warming affects the Earth’s oceans and its wildlife by Liz Olson Related Links Quiz: Global Warming Top Carbon Dioxide Emitters The…

Edwin Land

Edwin Land was a self-taught scientist and an entrepreneur who was granted more than 500 U.S. patents during his career. He is most famous as the man behind the Polaroid Corporation's instant camera…

Anatomy and
Physiology: You've Got Potential

You've Got PotentialAnatomy and PhysiologyThe Nervous SystemThe Great DivideSupport StaffNeuronsConnecting with SynapsesYou've Got Potential If you remember the basics of polarized membranes from…

2008 Year in Review - Science News

Top events for the nation and the world Science 2008 Science Milestones, 2008 New Lab on ISS • Polar Bears Listed as a Threatened Species • Reducing Greenhouse…

Rasmussen, Knud Johan Victor

(Encyclopedia) Rasmussen, Knud Johan VictorRasmussen, Knud Johan Victorkən&oomacr;tˈ yōˈhän vĭkˈtôr räsˈm&oobreve;sən [key], 1879–1933, Danish arctic explorer and ethnologist. Born in…