A mechanical device which models the motion of the planets. Obsolete.
| 单词 | θ1482 |
| 释义 | the world > the universe > cosmology > science of observation > astronomical instruments > representational device > [noun] > mechanical (10) theoric1585 A mechanical device which models the motion of the planets. Obsolete. cometarium1743 A mechanical device for demonstrating the appearance and motion of a comet moving in an elliptical orbit. Subcategories:— orrery (6) — sun (2) |
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