Books

1. Magic Science : 50 Jaw-Dropping, Mind-Boggling, Head-Scratching Activities for Kids
   

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2. A Kids' Guide to the Smithsonian
   

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3. A Sense of the Cosmos : Scientific Knowledge and Spiritual Truth
   

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4. Set Theory, Logic and their Limitations
   

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5. Mathematics in the Time of the Pharaohs
   

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Books