A liquid microchannel—the line where three soap films meet—vibrates like a string whose diameter shrinks as the shaking force increases. Soapy string. Images of a liquid microchannel at the ...

String theory began over 50 years ago as a way to understand the strong nuclear force. Since then, it’s grown to become a theory of everything, capable of explaining the nature of every particle, ...

Using a sputtering technique widely employed in semiconductor manufacturing, researchers developed high-quality, lead-free piezoelectric single-crystal thin films directly on standard silicon wafers.