Artist Matt Browning Is Making Moving Work with Metals

A review of Matt Browning's art show Moving-Metal at Veronica.by Emily PothastIn the early 1980s, a curious thing happened to pennies. The value of a penny-
sized piece of copper rose above one cent, making the coins more valuable as raw material than as currency. That's why pennies minted since 1982 have contained a zinc core plated by a thin veneer of copper.The switch to zinc wasn't the first time zinc was used to preserve more valuable materials. Shipbuilders use zinc in sacrificial anodes&m