You better go kill a dolphin...you were wrong: "Fluorescence is the emission of light by a substance that has absorbed light or other electromagnetic radiation of a different wavelength. [1]. It is a form of luminescence. In most cases, emitted light has a longer wavelength, and therefore lower energy, than the absorbed radiation. However, when the absorbed electromagnetic radiation is intense, it is possible for one electron to absorb two photons; this two-photon absorption can lead to emission of radiation having a shorter wavelength than the absorbed radiation. The most striking examples of fluorescence occur when the absorbed radiation is in the ultraviolet region of the spectrum, and thus invisible, and the emitted light is in the visible region. Fluorescence has many practical applications, including mineralogy, gemology, chemical sensors (Fluorescence spectroscopy), fluorescent labelling, dyes, biological detectors, and, most commonly, fluorescent lamps."
--- On Thu, 6/2/11, Mixon Bill <bmixon...@austin.rr.com> wrote: From: Mixon Bill <bmixon...@austin.rr.com> Subject: [Texascavers] fluorescent rope To: "Cavers Texas" <texascavers@texascavers.com> List-Post: texascavers@texascavers.com Date: Thursday, June 2, 2011, 10:26 PM Something that can be charged up in light and then will glow for six hours is phosphorescent, not fluorescent. Sheesh!.--Bill Mixon, fussy editor ---------------------------------------- No dolphins were killed in the preparation of this e-mail. ---------------------------------------- You may "reply" to the address this message came from, but for long-term use, save: Personal: bmi...@alumni.uchicago.edu AMCS: edi...@amcs-pubs.org or sa...@amcs-pubs.org --------------------------------------------------------------------- Visit our website: http://texascavers.com To unsubscribe, e-mail: texascavers-unsubscr...@texascavers.com For additional commands, e-mail: texascavers-h...@texascavers.com
