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  2. Sea water air conditioning - Wikipedia

    en.wikipedia.org/wiki/Sea_water_air_conditioning

    Salt water air conditioning systems have been used in Sydney's Circular Quay and prominent buildings within the harbour since the rise of commercial air conditioning systems in the 1960s. These include the heritage-listed AMP 'Palm Cove' Building (constructed 1962) and the Sydney Opera House. [5] [6] The InterContinental Resort is the largest ...

  3. Ultramarine - Wikipedia

    en.wikipedia.org/wiki/Ultramarine

    The different ultramarines—green, blue, red, and violet—are finely ground and washed with water. [21] Synthetic ultramarine is a more vivid blue than natural ultramarine, since the particles in synthetic ultramarine are smaller and more uniform than the particles in natural ultramarine and therefore diffuse light more evenly. [23]

  4. List of RAL colours - Wikipedia

    en.wikipedia.org/wiki/List_of_RAL_colours

    In the RAL Design System Plus, there are groups of colours every 10° of hue and additionally at 75°, 85° and 95°. Possible lightness values are 15% through 90% in steps of 5% for monochromatic shades of grey (i.e. C = 0%) and 20% through 90% in steps of 10% and additionally 85% and 93%.

  5. YInMn Blue - Wikipedia

    en.wikipedia.org/wiki/YInMn_blue

    YInMn Blue is chemically stable, does not fade, and is non-toxic. It is more durable than alternative blue pigments such as ultramarine or Prussian blue, retaining its vibrant color in oil and water, and is safer than cobalt blue, which is a suspected carcinogen and may cause cobalt poisoning. [26]

  6. Deep water source cooling - Wikipedia

    en.wikipedia.org/wiki/Deep_water_source_cooling

    Deep water source cooling (DWSC) or deep water air cooling is a form of air cooling for process and comfort space cooling which uses a large body of naturally cold water as a heat sink. It uses water at 4 to 10 degrees Celsius drawn from deep areas within lakes, oceans, aquifers or rivers, which is pumped through the one side of a heat exchanger .

  7. Blue pigments - Wikipedia

    en.wikipedia.org/wiki/Blue_pigments

    Copper phthalocyanine ("phthalo blue") is a synthetic blue pigment frequently used in paints, inks, and dyes. It is highly valued for its superior properties such as light fastness, tinting strength, covering power and resistance to the effects of alkalis and acids. It has the appearance of a blue powder, insoluble in most solvents including ...

  8. Shades of blue - Wikipedia

    en.wikipedia.org/wiki/Shades_of_blue

    This is an accepted version of this page This is the latest accepted revision, reviewed on 26 January 2025. Variety of the color blue For other uses, see Shades of Blue (disambiguation). "Shade of Blue" redirects here. For the song by Black Rebel Motorcycle Club, see Shade of Blue (song). For the R&B/funk band, see Shade of Blue (band). Blue Wavelength 440–490 nm Common connotations ...

  9. Color of water - Wikipedia

    en.wikipedia.org/wiki/Color_of_water

    Water color can reveal physical, chemical and bacteriological conditions. In drinking water, green can indicate copper leaching from copper plumbing and can also represent algae growth. Blue can also indicate copper, or might be caused by syphoning of industrial cleaners in the tank of commodes, commonly known as backflowing.

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