A Synthetic Tree Grows at Cornell

Scientists have made the world’s first synthetic tree: a palm-sized duplication of the elegant process by which trees drink. Known as transpiration, the hydration process appears to require no biological energy. Scientists theorise that as evaporation occurs on the surface of a tree’s leaves, the resulting drop in water pressure propels water from the earth and through their bodies. The same principle pulls oil through the wick of a candle

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