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Eclectic Perambulations in the Noosphere
Walking on Nails-Gabor Szabo
House of 3 Doors - First Door
House of 3 Doors - Second Door
Huichol Lightning by Rick Croissant
HIGH SCHOOL -- 1957 vs. 2010
Scenario 1:Sent by Stephanie...Thanks !
Space Elevator ©2003 Kenn Brown
"Climbers ascend a ribbon, 100,000 km long, strung between an anchor on Earth and a counterweight in space. Connecting Earth and space in a way never before possible, the space elevator will enable us to inexpensively and completely expand our society into space.
Beyond Earth, space elevators on the moon and Mars open new economic opportunities and expand humanity's reach ever so slightly into the solar system." The Space Elevator Reference
Limestone is a sedimentary rock whose chief mineral component is calcite (calcium carbonate: CaCO3). Limestone can be formed by precipitation of calcite dissolved in water or by depostion of marine organisms and entrainment of secondary minerals. Approximately 80 to 90% of limestone composition are skeletal fragments of marine organisms such as coral or foraminifera.
Some other carbonate grains comprising limestones are soil types such as ooids, peloids, intraclasts, and extraclasts; moreover, certain limestones do not consist of grains at all, but rather and are formed completely by the chemical precipitation of calcite or aragonite, the latter also known as travertine.
Due to the ease of dissolution and precipitation processes of calcium carbonate, limestone occurrences are linked to fascinating topographic phenomena of cave, karst and limestone pavements, the latter often called alvar.
NASA Earth Observatory image created by Jesse Allen and Robert Simmon. Caption by Michon Scott.
Located in China’s resource-rich but moisture-poor Xinjiang autonomous region, Lop Nur is an uninviting location for any kind of agriculture. It sits at the eastern end of the Taklimakan Desert, where marching sand dunes can reach heights of 200 meters (650 feet), and dust storms rage across the landscape.
Yet for all it lacks in agricultural appeal, Lop Nur offers something valuable to farmers the world over: potash. This potassium salt provides a major nutrient required for plant growth, making it a key ingredient in fertilizer.
