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- =START= XMT: 13:48 Mon Jun 12 EXP: 14:00 Thu Jun 15
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- CHINESE ARTIFACTS USED BY NASA SCIENTISTS TO DETERMINE THE EARTH'S ROTATION
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- ANN ARBOR (JUNE 12) UPI - Pieces of a tortoise shell used by ancient Chinese
- seers have led modern day scientists to determine how much the Earth's rotation
- has slowed, researchers said Monday.
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- Scientists from NASA's Jet Propulsion Laboratory in Pasadena, Calif., reported
- they fixed the date and path of a solar eclipse visible in China to the year
- 1302 B.C. based on inscriptions on the bone fragments.
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- Using computers and a computer model of the Earth's rotation, the scientists
- determined the length of each day was 47/1,000ths of a second shorter during
- the 14th century B.C. during China's Shang Dynasty.
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- "Three flames ate the sun, and the stars were seen," read one of the
- inscriptions on the "oracle bones," leading scientists to interpret the ancient
- statement as a total eclipse of the sun.
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- The "three flames," for example, apparently were coronal streamers licking out
- from the sun's surface during total eclipse. The masking of the sun by the moon
- would make the stars visible during the daytime.
-