| 摘要 |
The present invention relates to an educational tool for a magnetic field to enjoy with three-dimension, comprising: a transparent container of various shapes provided with grooves to insert magnets; a mixed solution of iron powder and a sol-type liquid such as starch syrup, glycerin, etc.; and a container to insert the magnet not to be directly in contact with the magnet with the iron powder. A user is able to monitor a shape of iron powder positioned around a magnet container and the shape of magnetic field by a repulsive force and an attractive force in a three-dimension shape, by inserting the magnet container into the mixed solution along with various activities. The grooves are provided on the transparent container having various shapes or an openable cap, to insert at least one magnet, where the mixed solution is not leaked upon handling to play with the same. The hole to insert the magnet is able to be added with a cap and a locking device, with a screw type groove in order to prevent escaping of the magnet when shaking the main body. The iron powder can be plated by various colors to provide aesthetical effect, and the mixed solution is a sol-type solution by mixing water to the glycerin or starch syrup to allow smooth floating of the iron powder. |
