たいようけいぎ
太陽系儀
1. orrery (mechanical model of the solar system)
2. OrreryAn orrery is a mechanical device that illustrates the relative positions and motions of the planets and moons in the Solar System in a heliocentric model. Though the Greeks had working planetaria, the first orrery that was a planetarium of the modern era was produced in 1704, and one was presented to the Earl of Orrery — whence the name came. They are typically driven by a clockwork mechanism with a globe representing the Sun at the centre, and with a planet at the end of each of the arms.
Read “Orrery” on English Wikipedia
Read “太陽系儀” on Japanese Wikipedia
Read “Orrery” on DBpedia
Read “Orrery” on English Wikipedia
Read “太陽系儀” on Japanese Wikipedia
Read “Orrery” on DBpedia
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