Very cool invention invented by Edward Leedskalnin decades ago. Dimensions: 6" long, 7" tall, and it's about 3" wide.
It has 2 twin coils 2.5" long, each coil contains of 80 turns of 14 Gauge wire for a total of 160 turns making a very powerful horseshoe electromagnet. When the horseshoe electromagnet is energized for only a moment and the battery is removed from the circuit, the electromagnet becomes like a permanent magnet, and it takes a certain amount of force to separate the crossbar from the horseshoe. If a lightbulb is connected across the coils and the crossbar is removed quickly, the lightbulb will lighten up momentarily even though there is no battery connected to it showing that the magnetic holder is storing energy in its magnetic field. The actual product may slightly differ from the images and / or videos.
It has 2 twin coils 2.5" long, each coil contains of 80 turns of 14 Gauge wire for a total of 160 turns making a very powerful horseshoe electromagnet. When the horseshoe electromagnet is energized for only a moment and the battery is removed from the circuit, the electromagnet becomes like a permanent magnet, and it takes a certain amount of force to separate the crossbar from the horseshoe. If a lightbulb is connected across the coils and the crossbar is removed quickly, the lightbulb will lighten up momentarily even though there is no battery connected to it showing that the magnetic holder is storing energy in its magnetic field. The actual product may slightly differ from the images and / or videos.
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