Hourglass figure
Why do wasps have such a narrow waist? What could be the advantage of having such a narrow join between thorax and abdomen, which seems like a very weak point?
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Rosalind Coles, Clyro, Powys, UK
Needing focus
I wear spectacles to correct for myopia and astigmatism. Is it possible to create a program to adjust the image of a TV, mobile or PC monitor using my optical prescription such that I could view it without spectacles?
Mike Daw, Cheltenham, Gloucestershire, UK
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