Feature

  1. “Diving God” in Ancient Maya Carving

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  2. Man-Made Lightning

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  3. Front Matter

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  4. Nature Ramblings: Euphorbias

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  5. Seedless Persimmons

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  6. Voice Prints

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  7. [Editorial]

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  8. Back Matter

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  9. Radio Reproducers

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  10. Physics of the Bowling Ball

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  11. Earth’s Rotation Speed Changing Daily

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  12. Crystal of Quartz Simplifies Television

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