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Direct linkDowns, Nathan; Parisi, Alfio – Teaching Science, 2010
A method is described for building a cost effective digital circuit capable of monitoring the solar radiation incident upon a remote solar cell. The circuit is built in two sections, the first, digitises the analogue voltage produced by the solar cell at a remote location and transmits the received signal to the second receiver circuit which…
Descriptors: Radiation, Science Instruction, Science Activities, Computer Uses in Education
Downs, Nathan; Turner, Joanna; Parisi, Alfio; Spence, Jenny – Teaching Science, 2008
A technique for using highlighter ink as an ultraviolet dosimeter has been developed for use by secondary school students. The technique requires the students to measure the percentage of colour fading in ink drawn onto strips of paper that have been exposed to sunlight, which can be calibrated to measurements of the ultraviolet irradiance using…
Descriptors: Secondary School Students, Measurement, Foreign Countries, Light
