heliotropism: a diurnal response where plants track the motion of the sun.Ginger started these plants inside for her garden, and it hasn't gotten quite warm enough to put them outside. Everynight before I go to sleep, I turn them away from the sliding glass doors, and everyday when I come home, they have turned and "grown" towards the sun. In an amazingly geeky bit of trivia, heliotropism was recorded by Leonardo da Vinci in the early 1500's.
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