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... pipe to the cystern instead, and gravity feed is all that is required to flush the loo for more than six months of each year. No special valves are needed to protect the city's water from contaminated ...
... lights off after hours. Switch off lights in areas such as the stationary or store rooms that are not occupied (look at investing in timer / motion light switches) Use natural ventilation and fans where ...
... for use by the plants. This will also encourage deep root growth. Mulch your garden. This will reduce evaporation (particularly important during the summer months). Look at investing in rainwater tanks ...
... and thermal radiation through roof, walls, floor and windows. Convective heat transfer Convective heat transfer can be beneficial or detrimental. Uncontrolled air infiltration from poor weatherisation ...
... the efficiency of the building envelope, (the barrier between conditioned and unconditioned space), they may use high-efficiency windows and insulation in walls, ceilings, and floors. Another strategy, ...
...  The arborloo does not make use of containers nor effective/optimal nutrient recycling. Instead, faeces falls into a pit untill it becomes full. At that moment, a new pit is dug and the old pit with faeces ...
... in 2001. The Zephyr, developed by BAE Systems, is the latest in a line of record-breaking solar aircraft, making a 54-hour flight in 2007, and month-long flights are envisioned by 2010. A solar balloon ...
... retailers argue that bright lighting stimulates purchasing. Health studies have demonstrated that headache, stress, blood pressure, fatigue and worker error all generally increase with the common over-illumination ...
... the recyclates, and a potential demand for the recycled products. These last two requirements are often overlooked—without both an industrial market for production using the collected materials and a consumer ...
Taxonomy by Zaragoza Online