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A method of swing on a swing is disclosed, in which a user positioned on a standard swing suspended by two chains from a substantially horizontal tree branch induces side to side motion by pulling alternately on one chain and then the other.
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| Application No. | Application Title | Issue Date |
| 20090049931 | Magnetostrictive Torque Sensor A magnetostrictive torque sensor of the present invention is provided with: a magnetostrictive film; a detection coil; a current direction switching device; and an inversion device, wherein: when the current flows in a direction from one side to another side of the dete... | 02/26/2009 |
