Half a croissant, on a plate, with a sign in front of it saying '50c'
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It's not a thing. It will be a thing.

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science: energy: sonic
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Ideas in bold have been created this week.
 (+2)  Acoustic Gas Compressor / Expander 
 (+1, -5)  Acoustic Power 
 (+1, -2)  Bridge Resonance Power Generator 

 

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