| Sciences of the Han |
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| • | Work in the
sciences focused on |
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| practical
applications. |
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| • | Astronomers
developed a 365.5 |
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| day calendar and
calculated |
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| planetary
movement. |
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| • | Medical
advances came in disease |
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| diagnosis,
herbal and drug |
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| remedies, and
acupuncture. |
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| • | In mathematics
the practical focus |
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| led to
discoveries in acoustics and |
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| measurement
standards. |
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