アラゴーの円板
1. Arago's rotationsArago's rotations is an observable phenomena effect discovered by François Arago in 1824. In the effect, as a copper disc is rotated in its own plane, and if a magnetic needle be freely suspended on a pivot over the disc, the needle will rotate with the disc. If on the other hand the needle is fixed it will tend to retard the motion of the disc.
Read “Arago's rotations” on English Wikipedia
Read “アラゴーの円板” on Japanese Wikipedia
Read “Arago's rotations” on DBpedia
Read “Arago's rotations” on English Wikipedia
Read “アラゴーの円板” on Japanese Wikipedia
Read “Arago's rotations” on DBpedia
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