As you wolf down chips at summertime picnics, it's nice to know that Pentagon futurists are busy working on a whole other kind of chip for hungry soldiers. Army scientists want to develop a "grocery store on a chip" for use during battle.
The dime-size wafer, not expected before 2025, would store micronutrients in hundreds of mini-reservoirs. After the wafer is swallowed, built-in sensors would respond to various chemicals, acids and proteins in the G.I.'s gut signaling hunger. A resulting small electrical charge would dissolve a thin gold cap on a reservoir, releasing the needed nutrients.
Scientists at the Pentagon's...
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