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2. Solar thermal collector - Wikipedia

   en.wikipedia.org/wiki/Solar_thermal_collector

   As the sun moves across the sky, the aperture of any fixed collector changes. This causes changes in the amount of captured sunlight, producing what is called the sinus effect of power output. Proponents of the solar bowl design claim the reduction in overall power output compared with tracking parabolic mirrors is offset by lower system costs.

3. Passive solar building design - Wikipedia

   en.wikipedia.org/wiki/Passive_solar_building_design

   Movable shutters, shades, shade screens, or window quilts can accommodate day-to-day and hour-to-hour solar gain and insulation requirements. Careful arrangement of rooms completes the passive solar design. A common recommendation for residential dwellings is to place living areas facing solar noon and sleeping quarters on the opposite side. [9]

4. Waratah - Wikipedia

   en.wikipedia.org/wiki/Waratah

   More flowers will be produced in full sunlight although better quality flowers are found in the shade. Paul Nixon (1997) in his book ‘The Waratah’ claims that ‘the ideal situation is to have rich, well drained, deep soil with a north-easterly aspect giving the plants full sun until the flowers buds have initiated and then put shade cloth ...

5. Heather (fabric) - Wikipedia

   en.wikipedia.org/wiki/Heather_(fabric)

   It is typically used to mix multiple shades of grey or grey with another color to produce a muted shade (e.g., heather green), but any two colors can be mixed, including bright colors. A mixed fabric color is achieved by using different colors of fiber and mixing them together (a good example is a grey heather t-shirt).

6. Sailcloth - Wikipedia

   en.wikipedia.org/wiki/Sailcloth

   Weight is described in ounces, for example "an 8 oz. cloth". This means that an area of 72 cm × 91 cm (28 + 1 ⁄ 2 in × 36 in) weighs 230 g (8 oz). Sailcloth is woven in two forms: balanced and unbalanced. The yarns in balanced cloth are the same diameter and weight in lengthwise (the "warp") and across the width of the cloth (the "fill").

7. David Brower Center - Wikipedia

   en.wikipedia.org/wiki/David_Brower_Center

   In addition to the exterior shading devices, occupants can make further adjustments from within the building using manually-operated interior roller fabric shades above each window. On top of the David Brower Center, there is a 68 kilowatts (91 hp) photovoltaic array that offsets approximately 35 percent of the building's electricity energy ...