21. The Stern Volmer experiment measures the intensity of phosphorescence while varying the concentration of each possible quenching agent. 22. Wierusz-Kowalski's major fields of study were lightning and electrical discharge, luminescence and phosphorescence . 23. The lighting effects, a changing blend of blue, green and white, have the phosphorescence of decay. 24. This is a character who revels in language, relishing words that evaporate on your tongue, like phosphorescence . 25. Processes such as fluorescence and phosphorescence are examples of " intramolecular " deactivation ( quenching ) processes. 26. Berger JW, Vanderkooi JM . Characterization of lens alpha-crystallin tryptophan microenvironments by room temperature phosphorescence spectroscopy. 27. The magical phosphorescence of plankton grips anything touching the water, making fish appear silvery streaks and raindrops lightning explosions. 28. The decay time and the spectra of this phosphorescence are temperature sensitive and offer two different methods to measure temperature. 29. This parameter is proportional to the phosphorescence wavelength and is used to compute the redox potentials of the triplet state. 30. Even self-assured drivers can feel pangs of anxiety after driving miles through the dusky phosphorescence of an Alpine tunnel.