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Di: Nadia Ticozzi
La materia appare ai nostri occhi del colore che riflette. Perché mai una foglia è verde e un pomodoro, invece, rosso, lo spiega la fisiologa delle piante Diana Santelia. In gioco ci sono le clorofille, gli antociani, le stagioni e le frequenze della luce. Un delicato equilibrio di energia che deve essere assorbita e quindi trasformata, per diventare, infine, una peperonata.
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