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Name: Joseph Status: Other Age: 40s Location: N/A Country: N/A Date: N/A
Do you know of a material that when electrically charged either swells or shrinks and which returns to original shape when electrical charge is removed?
My guess is a piezoelectric. Barium Titanate is the grandfather of piezo's.
Materials like this are described as piezoelectric. Quartz is one.
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