Becoming less viscous when subjected to stress or agitation; becoming more fluid when stirred or shaken.
From Greek 'thixis' (touching) + 'tropos' (turning/change). Ketchup is thixotropic — it's thick until you shake it, then it flows!
This is why ketchup won't come out of the bottle until you SHAKE it — then it all comes out at once! It changes from solid-ISH to liquid when you stress it! Quicksand is thixotropic too! Science explains your LUNCH! 🍅🫗
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