geophysical modification activity
31undersea exploration — Introduction the investigation and description of the ocean waters and the seafloor and of the Earth beneath. Primary objectives and accomplishments Included in the scope of undersea exploration are the physical and chemical… …
32Olympic-Wallowa Lineament — Location of the Olympic Wallowa Lineament. Is the OWL an optical illusion? The Olympic Wallowa lineament (OWL) – first reported by cartographer Erwin Raisz in 1945 [1] on a relief map of the continental United States – is a physiographic feature… …
33Signal transduction — In biology, signal transduction refers to any process by which a cell converts one kind of signal or stimulus into another. Most processes of signal transduction involve ordered sequences of biochemical reactions inside the cell, which are… …
34arctic — arctically, adv. /ahrk tik/ or, esp. for 7, /ahr tik/, adj. 1. (often cap.) of, pertaining to, or located at or near the North Pole: the arctic region. 2. coming from the North Pole or the arctic region: an arctic wind. 3. characteristic of the… …
35Discovery quadrangle — Mariner 10 photomosaic The Discovery quadrangle lies within the heavily cratered part of Mercury in a region roughly antipodal to the 1550 km wide Caloris Basin. Like the rest of the heavily cratered part of the planet, the quadrangle contains a… …
36Triton (moon) — Triton Voyager 2 photomosaic of Triton s sub Neptunian hemisphere. The bright, slightly pinkish, south polar cap at bottom is composed of nitrogen and methane ice and is streaked by dust deposits left by nitrogen gas geysers. The mostly darker… …
37Terre — Pour les articles homonymes, voir Terre (homonymie). Terre …
38Radioactive waste — 2007 ISO radioactivity danger logo, designed in part for long term radioactive waste depositories which might survive into a far future time in which all knowledge of the meaning of present common radiation danger symbols and signs has been lost… …
39Anthropology and Archaeology — ▪ 2009 Introduction Anthropology Among the key developments in 2008 in the field of physical anthropology was the discovery by a large interdisciplinary team of Spanish and American scientists in northern Spain of a partial mandible (lower… …
40Mars Pathfinder — Pathfinder and Sojourner at JPL in October 1996 Operator NASA – JPL Mission type Lander, rover …
