A week or so ago there was a very strange occurrence in England, I first saw it one morning when I walked out of my front door. There was a vey bright light in the sky and my skin experienced a strange warming sensation. Slightly alarmed I immediately went back inside and searched Wikipedia with these strange symptoms, it turned out that this phenomena is known as ‘sunshine’ and is quite common in many parts of the world.
Further research revealed that it is advisable, when this event occurs, to liberally cover the epidermis in a substance called ‘sunscreen’ with an SPF factor of 30 – 50. (whatever that might be)
Obviously this required further investigation and looking further into the subject I found the following
In this equation, d(?) = 1 nm, A(?) stands for the Erythema Action Spectrum, E(?) represents the sun’s radiation power, and MPF stands for how much light is absorbed and the ability of skin cells to be damaged. MPF is the inverse of the transmission (1/T) at a given wavelength.
Which is all very clever but sadly there was no information on the advisability of taking a sweater or a raincoat, just in case.
St Tropez is not the location where this picture was taken, it’s the name of the sun cream on the ladies bits and bobs.
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