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The Periodic Table
The Periodic Table
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Russian chemist Dmitri Mendeleev was exhausted from three days of trying to classify the 56 elements when he decided to sleep on it. “I saw in a dream a table where all the elements fell into place as required. Awakening, I immediately wrote it down on a piece of paper,” Mendeleev wrote in his diary, “Only in one place did a correction later seem necessary.” What sort of things do you dream about? The answer can be very revealing about you.

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