Read Edit View history 候風地動儀 hòufēngdìdòngyí Houfeng Didong Yi Origin Definitions Defs Strokes Stroke Words Sentences Sents Senses Add sense 候风地动仪/ 候風地動儀 hòufēngdìdòngyí Houfeng Didong Yi The world's first seismograph, invented by the astronomer 张衡 zhānghéng in 132 AD during the Eastern Han dynasty. Edit Delete References Add reference classifier 候风地动仪/候風地動儀 → 台/臺 Edit Delete abbreviation 候风地动仪/候風地動儀 → 地动仪/地動儀 Edit Delete abbreviation 地动仪/地動儀 → 候风地动仪/候風地動儀 Edit Delete
候风地动仪/ 候風地動儀 hòufēngdìdòngyí Houfeng Didong Yi The world's first seismograph, invented by the astronomer 张衡 zhānghéng in 132 AD during the Eastern Han dynasty. Edit Delete