The Umbrella
The word 'umbrella' is actually a diminutive. It comes from a word which should be familiar to any physics (well, optics) student. When you study eclipses, you learn about the umbra, or 'shadow', and the penumbra, or 'almost-shadow'. An umbrella is a smaller umbra, a portable shade.
Well, ombra mai fù, as old Xerxes used to say.
Labels: Life
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