enow.com Web Search

  1. Ad

    related to: luminessence 5 hour emergency candles instructions free print out full text

Search results

  1. Results from the WOW.Com Content Network
  2. Chemiluminescence - Wikipedia

    en.wikipedia.org/wiki/Chemiluminescence

    Chemiluminescence kites, [17] emergency lighting, glow sticks [18] (party decorations). Combustion analysis: Certain free radical species (such as • CH and • OH) give off radiation at specific wavelengths. The heat release rate is calculated by measuring the amount of light radiated from a flame at those wavelengths.

  3. Glow stick - Wikipedia

    en.wikipedia.org/wiki/Glow_stick

    Glow sticks are used by police, fire, and emergency medical services as light sources, similar to their military applications. Often, emergency rescue crews will hand out glow sticks in order to keep track of people at night, who may not have access to their own lighting.

  4. Candoluminescence - Wikipedia

    en.wikipedia.org/wiki/Candoluminescence

    Candoluminescence is the light given off by certain materials at elevated temperatures (usually when exposed to a flame) that has an intensity at some wavelengths which can, through chemical action in flames, be higher than the blackbody emission expected from incandescence at the same temperature. [1]

  5. Luminescence - Wikipedia

    en.wikipedia.org/wiki/Luminescence

    Luminol and haemoglobin, an example of chemiluminescence UV-photoluminescence in microbiological diagnostics. Luminescence is a spontaneous emission of radiation from an electronically or vibrationally excited species not in thermal equilibrium with its environment.

  6. Candlepower - Wikipedia

    en.wikipedia.org/wiki/Candlepower

    The majority redefined the candle in term of an electric lamp with a carbon filament. The Germans, however, dissented and decided to use a definition equal to 9/10 of the output of a Hefner lamp . In 1921, the Commission Internationale de l'Eclairage (International Commission for Illumination, commonly referred to as the CIE) redefined the ...

  7. The Chemical History of a Candle - Wikipedia

    en.wikipedia.org/wiki/The_Chemical_History_of_a...

    A Course of Six Lectures on the Chemical History of a Candle. Griffin, Bohn & Co. Full text of The Chemical History Of A Candle from Project Gutenberg; Walker, Mark; Gröger, Martin; Schlüter, Kirsten; Mosler, Bernd (1 January 2008). "A Bright Spark: Open Teaching of Science Using Faraday's Lectures on Candles". Journal of Chemical Education.

  8. Sonoluminescence - Wikipedia

    en.wikipedia.org/wiki/Sonoluminescence

    The animal snaps a specialized claw shut to create a cavitation bubble that generates acoustic pressures of up to 80 kPa at a distance of 4 cm from the claw. As it extends out from the claw, the bubble reaches speeds of 60 miles per hour (97 km/h) and releases a sound reaching 218 decibels. The pressure is strong enough to kill small fish.

  9. Candela - Wikipedia

    en.wikipedia.org/wiki/Candela

    The 26th General Conference on Weights and Measures (CGPM) redefined the candela in 2018. [10] [11] The new definition, which took effect on 20 May 2019, is: The candela [...] is defined by taking the fixed numerical value of the luminous efficacy of monochromatic radiation of frequency 540 × 10 12 Hz, [a] K cd, to be 683 when expressed in the unit lm W −1, which is equal to cd sr W −1 ...

  1. Ad

    related to: luminessence 5 hour emergency candles instructions free print out full text