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Wintergreen candy and other triboluminescent materials
This web page summarises the investigations of Prof Linda Sweeting into a variety of tribiluminescent materials including sugary sweets, envelopes and sticky tape. It also contains a good ...
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Huygens' Principle
In 1678 the great Dutch physicist Christian Huygens wrote on the wave theory of light, and in this work he stated that the wavefront of a propagating wave of light at any instant conforms to the ...
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