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ACCORDION CAN is a public trash can with accordion-shape sides.
The expandable side changes its scale when garbage is contained in.
Its shape changes apparently, so that the garbage men can recognize
the amount of garbage inside easily without nearby checking.
The accordion-shape sides replace the traditional trashbag. When it is
full, garbage men detach the part outside, and move them onto the truck.
Then garbage men can replace the new ones on and send the detached ones back to recycling companies
Min Yi Lin, Rih Yan Li, Jhih Teng Ke