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Direct linkHughes, S. W. – Physics Education, 2009
What colour is a shadow? Black, grey, or some other colour? This article describes how to use a digital camera to test the hypothesis that a shadow under a clear blue sky has a blue tint. A white sheet of A4 paper was photographed in full sunlight and in shadow under a clear blue sky. The images were analysed using a shareware program called…
Descriptors: Photography, Light, Hypothesis Testing, Science Instruction
Peer reviewedGuisasola, J.; Barragues, J. I.; Valdes, P.; Pedroso, F. – Physics Education, 1999
Describes changes in scientific research methods that have been brought about by the use of computers. Presents an example of the falling of a body in a fluid to show students how computers can be used to experiment with mathematical models and to automate experiments. Contains 11 references. (Author/WRM)
Descriptors: Computer Simulation, Computer Uses in Education, Higher Education, Hypothesis Testing
