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  2. Crystal Light - Wikipedia

    en.wikipedia.org/wiki/Crystal_Light

    Crystal Light is an American brand of powdered and artificially sweetened beverage mixes produced by Kraft Heinz. It was introduced in 1982 to a test market and released to the public in April 1984. It was introduced in 1982 to a test market and released to the public in April 1984.

  3. Fluorescent lamps and health - Wikipedia

    en.wikipedia.org/wiki/Fluorescent_lamps_and_health

    An open (single envelope) CFL [12] An encapsulated/closed (double envelope) CFL. Some fluorescent lamps emit ultraviolet radiation. [citation needed] The Health Protection Agency of the United Kingdom has conducted research concluding that exposure to open (single envelope) compact fluorescent lamps (CFLs) for over 1 hour per day at a distance of less than 30 cm can exceed guideline levels as ...

  4. Phosphorescence - Wikipedia

    en.wikipedia.org/wiki/Phosphorescence

    In a modern, scientific sense, the phenomena can usually be classified by the three different mechanisms that produce the light, [further explanation needed] and the typical timescales during which those mechanisms emit light. Whereas fluorescent materials stop emitting light within nanoseconds (billionths of a second) after the excitation ...

  5. Lead glass - Wikipedia

    en.wikipedia.org/wiki/Lead_glass

    Cut glass wine glass made of lead glass. Lead glass, commonly called crystal, is a variety of glass in which lead replaces the calcium content of a typical potash glass. [1] Lead glass contains typically 18–40% (by mass) lead(II) oxide (PbO), while modern lead crystal, historically also known as flint glass due to the original silica source, contains a minimum of 24% PbO. [2]

  6. Is It Safe to Use Expired Vitamins? The Truth About Vitamin ...

    www.aol.com/vitamins-expire-nutritionists-weigh...

    Elements like heat, humidity, light, and air are the “main enemies of vitamin freshness,” says Blatner. “Keep them cool, dry, and out of the sun.” So, probably not in your medicine cabinet.

  7. The dangers of LED face masks you should know about - AOL

    www.aol.com/lifestyle/dangers-led-face-masks...

    Said Palep, "At-home LED devices use lower frequencies, so [they] haven’t proven to be as effective or the results as dramatic as in-office treatments like the Blu-U light and micro pulsed Nd ...

  8. Skeptical Of The 'Power' Of Crystal Healing? The ... - AOL

    www.aol.com/skeptical-power-crystal-healing...

    The most famous study about crystal healing happened in the early 2000s in London, where Dr. Christopher French, a psychologist at Goldsmith's College, worked with 80 volunteers to test the ...

  9. Blacklight - Wikipedia

    en.wikipedia.org/wiki/Blacklight

    Blacklight fluorescent tubes. The violet glow of a blacklight is not the UV light itself, but visible light that escapes being filtered out by the filter material in the glass envelope. A blacklight, also called a UV-A light, Wood's lamp, or ultraviolet light, is a lamp that emits long-wave ultraviolet light and very little visible light.