This time last year Cabot Circus was the scene of a charity 'flash mob freeze' where participants held poses of their own choosing for several minutes before going about their business.
What does it mean to so fear wrinkles that to avoid them you will flash-freeze your face or spend time retraining your forehead?
如此惧怕皱纹以至于为了避免它们忍受着脸部的瞬间僵硬以及花时间再改造前额，这是出于何种原因？
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At high altitude and low temperatures, water sometimes doesn't freeze. Instead, it hovers, but as soon as something solid — like a pitot tube — flies through it, the water flash-freezes to form ice.