• 2021-04-14
    What was invented by Zhang Heng to detect a distant earthquake?
  • seismometer
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    内容

    • 0

      In Japan, how have scientists detect the earthquake

    • 1

      Zhang Heng's Guide car is made up of a four wheeled single-shaft.

    • 2

      This distance-recording chariot is a kind of odometer, which was invented by Zhang Heng.( )。

    • 3

      中国大学MOOC: The celestial model Zhang Heng constructed was almost a physical model of Ptolemy’s earth-centered theory.

    • 4

      Zhang Heng's Guide car uses ______principles and gears. A: mechanical B: artistic C: life D: economic