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2. Tint, shade and tone - Wikipedia

   en.wikipedia.org/wiki/Tint,_shade_and_tone

   In color theory, a tint is a mixture of a color with white, which increases lightness, while a shade is a mixture with black, which increases darkness. Both processes affect the resulting color mixture's relative saturation. A tone is produced either by mixing a color with gray, or by both tinting and shading. [1]

3. Window film - Wikipedia

   en.wikipedia.org/wiki/Window_film

   If the windows are designed to provide heat energy in the winter and keep heat inside the house (typical of cold climates), the low-emissivity coating should be applied to the inside pane of glazed windows. Such films also reduce the amount of visible and ultraviolet radiation entering a window, and are often applied to reduce the fading of the ...

4. Window insulation film - Wikipedia

   en.wikipedia.org/wiki/Window_insulation_film

   Using the European standard a window with an ideal gap of 17 mm has a simulated U-Value of about 2.8 W/(m 2 K), a window with a much smaller gap of 6 mm has a U-value of about 3.3 W/(m 2 K), while a single glazed window has a U-value of about 5.5 W/(m 2 K). [2] (see also insulated glazing).

5. What should you set your heat to in the winter? Avoid ... - AOL

   www.aol.com/set-heat-winter-avoid-thermostat...

   The World Health Organization recommends keeping indoor temperatures between 64 and 75 degrees for healthy people. But for those who are very young, elderly or who have health problems, the ...

6. Low emissivity - Wikipedia

   en.wikipedia.org/wiki/Low_emissivity

   Low emissivity (low e or low thermal emissivity) refers to a surface condition that emits low levels of radiant thermal (heat) energy. All materials absorb, reflect, and emit radiant energy according to Planck's law but here, the primary concern is a special wavelength interval of radiant energy, namely thermal radiation of materials.

7. Color temperature - Wikipedia

   en.wikipedia.org/wiki/Color_temperature

   The color temperature scale describes only the color of light emitted by a light source, which may actually be at a different (and often much lower) temperature. [1] [2] Color temperature has applications in lighting, [3] photography, [4] videography, [5] publishing, [6] manufacturing, [7] astrophysics, [8] and other fields.