A desert is a landscape or region that receives very little precipitation. Deserts are defined as areas with an average annual precipitation of less than 250 mm (10 in), or as areas where more water is lost by evapotranspiration than falls as precipitation. In the Köppen climate classification system, deserts are classed as BWh (hot desert) or BWk (temperate desert). In the Thornthwaite climate classification system, deserts would be classified as arid megathermal climates.
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flickr
flickr
Moai in the Atacama desert, Chile
The Highlands of Atacama desert
the White Desert
Friday, May 15, 2009
Thursday, May 7, 2009
Sunday, May 3, 2009
Eyes
Eyes are organs that detect light, and send signals along the optic nerve to the visual and other areas of the brain. Complex optical systems with resolving power have come in ten fundamentally different forms, and 96% of animal species possess a complex optical system. Image-resolving eyes are present in cnidaria, mollusks, chordates, annelids and arthropods.
wikipedia
wikipedia
Saturday, May 2, 2009
Ghost house
A ghost is popularly held to be the disembodied spirit or soul of a deceased person. Popularly described as insubstantial and partly transparent, ghosts are reported to haunt particular locations that they were associated with in life or at time of death. A revenant is a deceased person returning from the dead to haunt the living, either as a disembodied ghost or alternatively as an animated ("undead") corpse.
wikipedia
A house generally refers to a shelter or building or structure that is a dwelling or place for habitation by human beings. The term includes many kinds of dwellings ranging from rudimentary huts of nomadic tribes to high-rise apartment buildings. However, the word can also be used as a verb ("to house"), and can have adjectival formations as well. In some contexts, "house" may mean the same as dwelling, residence, home, abode, accommodation, housing, lodging, among other meanings.
wikipedia
wikipedia
A house generally refers to a shelter or building or structure that is a dwelling or place for habitation by human beings. The term includes many kinds of dwellings ranging from rudimentary huts of nomadic tribes to high-rise apartment buildings. However, the word can also be used as a verb ("to house"), and can have adjectival formations as well. In some contexts, "house" may mean the same as dwelling, residence, home, abode, accommodation, housing, lodging, among other meanings.
wikipedia
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