Concept for the magnetic sculpture.

Version A: The sculpture 1. Objective A series of large, suspended permanent magnets provide a target for visitors to toss coins. Nickel-based coins stick to the magnet, forming ‘stalactites’. Non-magnetic coins fall into a collection chamber below the magnets. 2. Visitor Experience Description Visitors learn about the metals used in coins. They also learn that nickel is ferromagnetic. Signage alongside shows the coins and provides their metal content. The metal content of coin changes over the years as metal prices rise and forging techniques change. The coins hanging from the magnets will have to be out of reach of visitors – a stalactite of coins might be quite valuable. The sculpture might have to periodically be cleared off a little and the coins collected will provide some revenue to the facility. People will toss objects other than coins as well, but a sorting system (not unlike geological screens) will help sort things out. 3. Key components of exhibits • A collection of powerful magnets hanging overhead. • A chamber for collecting coins that do not stick. • A security system and associated protocols. • Graphics explaining coin composition 4. Space requirement - Expect to use at least 100 sq ft 5. Adjacencies This is a standalone exhibit, but is best when placed in an appropriate context that deals with elements, magnetism, metals, earth sciences, or mining. Placing it in a corner helps in the dealing with the necessary security issues. 6. Preliminary cost breakdown Should be doable for $10,000. 7. Prototyping recommendations Acquire a bunch of magnets (probably about $200 worth) and find a place to rig them up. We can test the concept using washers. 8. Other considerations Washers could also be used in the sculpture to help fill out the stalactites and increase the visual impact without having to be totally dependent upon coins. But the intent is still to have visitors throw their money!