A lecture by Professor David Phillips from Imperial College London http://www.gresham.ac.uk/lectures-and-events/a-little-light-relief

Light, particularly sunlight, has always occupied a mystical power and is commonly held to bestow good health upon recipients of its rays. That there is both truth and fallacy in such beliefs will be demonstrated as the science of photo-medicine is dealt with from a chemist's point of view. The subject encompasses the effects of light on the skin, diagnostic uses of light, and therapeutic aspects, with a brief consideration of the harmful effects of solar radiation. The lecture will be illustrated with demonstrations. No prior knowledge of chemistry or science is necessary.

Gresham College has been giving free public lectures since 1597. This tradition continues today with all of our five or so public lectures a week being made available for free download from our website. There are currently over 2,000 lectures free to access or download from the website.

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