To effectively gather solar energy, a solar collector (glass, solar panel, etc. Sun path - refers to the apparent significant seasonal and hourly positional changes of the sun (and length of daylight) as the Earth rotates, and orbits around the sun. Sun tanning - describes a darkening of the skin (especially of fair skinned individuals) in a natural physiological response stimulated by exposure to ultraviolet (UV) radiation from sunshine or from artificial sources such as a tanning bed. comparative darkness caused by a more or less opaque object cutting off rays of light … English World dictionary The term is also used in horticulture and landscaping, although in this context its use is sometimes sloppy, especially with respect to labeling of plants for… … Wikipedia Shade tolerance - is an ecological concept that refers to plants abilities to tolerate low light levels. ColourTree 12' x 12' x 12' Blue Sun Shade Sail Canopy Triangle - Commercial Standard Heavy Duty - 190 GSM - 3 Years Warranty 6 4.5 out of 5 Stars. It may refer to blocking of sunlight by a roof, a tree, an umbrella, a window shade or blind, curtains, or other objects. Shade - is the blocking of sunlight (in particular direct sunshine) by any object, and also the shadow created by that object. shade - /ˈsʌnˌʃeıd/ noun, pl shades : something (such as a parasol or awning) that blocks sunlight … Useful english dictionary.
an awning, especially one over the outside of a window … Useful english dictionary
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