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Downs, Nathan; Parisi, Alfio; McDonnell, Brendan; Thornton, Peter – Teaching Science, 2008
The article presents a technique to measure the ultraviolet index using a personal hand-held ultraviolet meter to illustrate concepts of physics. Measurements of the erythemally effective (sun-burning) direct solar beam, diffuse skylight, and total global ultraviolet irradiance are converted to daily ultraviolet index measurements. Daily…
Descriptors: Measurement Techniques, Prediction, Physics, Elementary Secondary Education
Schouten, Peter; Parisi, Alfio; Downs, Nathan – Teaching Science, 2009
The measurement of solar UV under water is not a simple process. In the underwater environment the difficulty of obtaining useable data is greatly amplified due to the optically complicated and at times unpredictable nature of water itself. The following practical exercise designed for use in the Year 11 and Year 12 Physics classroom aims to…
Descriptors: Optics, Physics, Science Instruction, Secondary School Science