1+2+3: Ping Ponger

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The Ping Ponger uses almost half of a rubber racquetball as a disc spring that’s bistable (it can be at rest in 2 possible states) to propel a ping-pong ball from a compact PVC launcher.

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Edwin Wise

Edwin Wise is a software engineer with more than 25 years of professional experience developing software by day and exploring the edges of mad science by night. He can be found at simreal.com.

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