Iron Nail Bridge
Electromagnetism · Interactive
- DimensionsSubject to on-site plan
- PresentationInteractive
- PricingQuoted by manufacture spec
Iron Nail Bridge is a hands-on, mechanical & electromechanical interactive exhibit manufactured by Hefei Panda for science centers, children’s museums, discovery centers, STEM learning centers and family entertainment centers. Engineered for durable, robust, low-maintenance, high-traffic gallery installation, it turns abstract scientific concepts into direct, interactive visitor exploration. Hefei Panda is a global exhibit manufacturer exporting hands-on science displays to 50+ countries, with in-house engineering, fabrication, installation and commissioning.
Exhibit Summary
Iron Nail Bridge is a Interactive interactive exhibit in the Electromagnetism category, designed for science centers, children’s museums, discovery centers, STEM learning centers and family entertainment centers. Built as a hands-on, mechanical & electromechanical display, it turns an abstract scientific concept into direct, interactive visitor exploration, and is engineered for durable, low-maintenance, high-traffic gallery use.
Scientific Principle
The purpose is to allow the audience to magnetize the iron nails via the magnetic field generated by the energized coil, and then connect the magnetized iron nails one by one to form a "bridge" shape, while thinking about the concept of electromagnetic conversion in the process.
Operation
If a current flows via a straight metal wire, a circular magnetic field will be generated in the space around the wire. The greater the current flowing in the wire, the stronger the magnetic field produced. The magnetic field is circular and surrounds the wire. A long metal wire is wound around a hollow cylinder in one direction to form an object called an electromagnet. The magnetic field lines outside the electromagnet originate from the north pole of the electromagnet and return to the south pole. However, the direction of the magnetic field inside the electromagnet is from the south pole to the north pole. The electromagnet is externally equivalent to a bar magnet. The magnetic field outside the electromagnet is similar to that of a bar magnet. Why do small iron nails attract each other to form a "bridge deck"? The "piers" on both sides are iron cores with coils wound on the surface, which are electromagnets. When current flows via it, it becomes magnetic like a magnet, and the magnetism disappears when the power is turned off. The "piers" are not magnetic, but energizing the coil will make the iron core in the center magnetic. At this time, when the small iron nail is close to the "bridge pier", it will be attracted to it and become magnetic. Because magnetism has the characteristics of like poles repelling each other and opposite poles attracting each other, iron nails can be connected end to end between two "bridge piers" to form a "bridge deck". The phenomenon that these originally non-magnetic iron cores and iron nails become magnetic under the action of a magnetic field is called magnetization. Electromagnets have many applications in life: install the electromagnet on a crane, energize it and pick up a large amount of steel. After moving to another position, cut off the current and put the steel down. This achieves the movement of a large amount of iron-containing materials. Large electromagnetic cranes can lift several tons of steel at a time, which greatly improves work efficiency. If a current is passed via a straight metal wire, a circular magnetic field will be generated in the space around the wire. The greater the current flowing in the wire, the stronger the magnetic field produced. The magnetic field is circular and surrounds the wire. A long metal wire is wound around a hollow cylinder in one direction to form an object called an electromagnet. The magnetic field lines outside the electromagnet originate from the north pole of the electromagnet and return to the south pole. However, the direction of the magnetic field inside the electromagnet is from the south pole to the north pole. The electromagnet is externally equivalent to a bar magnet. The magnetic field outside the electromagnet is similar to that of a bar magnet.
Export-Ready Features
- Durable, robust construction for high-traffic gallery environments
- Low-maintenance electromechanical design with reliable, safe components
- Custom sizing, theming & multilingual labeling available
- OEM & turnkey exhibit solutions with full project management
- Overseas shipping, export documentation & on-site installation supported
- Shipped to science centers and museums in 50+ countries