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A twinkle bulb is a special type of light bulb which blinks on and off for decorative effect. They are most commonly used on Christmas lights and other string lights, but can also be used for other ornamental purposes like electric jack-o-lanterns for Halloween and replica traffic lights .
In 1963, a boycott of Christmas lights was done in Greenville, North Carolina, to protest the segregation that kept blacks from being employed by downtown businesses in Greenville, during the Christmas sales season. Known as the Black Christmas boycott or "Christmas Sacrifice", it was an effective way to protest the cultural and fiscal ...
Common is a set of 60 (2 volts per bulb), but white LED sets use two circuits of 30 (4 volts per bulb). Multicolor sets may have special wiring, because red and yellow require less voltage than the newer blue-based ones (blue, emerald green and fluorescent white), but typically come in sets with a multiple of 35.
Common screw-in bubble light. A bubble light is a decorative device consisting of a liquid-filled vial that is heated and illuminated by an incandescent light bulb.Because of the liquid's low boiling point, 39.6°C (103.3°F), the modest heat generated by the lamp causes the liquid to boil and bubble up from the vial's base thus creating a decorative effect.
The ornate type of murano chandelier is called ciocca (literally "bouquet of flowers") for the characteristic decorations of glazed polychrome flowers. The most sumptuous consisted of a metal frame covered with small elements in blown glass, transparent or colored, with decorations of flowers, fruits and leaves, while simpler models had arms ...
Mazda brand light bulbs were made for decades after 1945 outside the US. The company chose the name due to its association with Ahura Mazda, the transcendental and universal God of Zoroastrianism, whose name means light of wisdom in the Avestan language. In 1909, the Mazda name was created for the tungsten filament light bulb. GE sold bulbs ...
In the 1980s, after watching a salvage operation, Bob Rosenzweig started the reproduction and selling of his faux-antique bulbs. [9] These vintage-style light bulb reproductions were sold mostly to collectors and prop houses, and continued until the turn of the 21st century when new regulations banned low-efficiency lighting in many countries.
Although digital images captured in color can be modified with a digital black and white process, some specialized cameras photograph natively in black and white with no option for color. [10] Black and white digital cameras are often designed without a Bayer filter, avoiding the demosaicing process and meaning that a camera will only capture ...