Researchers discover sperm move along a 'twisting ribbon'

(Phys.org) —Opening the door to more sophisticated investigation of sperm locomotion and biophysics, researchers from UCLA's Henry Samueli School of Engineering and Applied Science have identified previously unobserved ...

A micro-optical method for thwarting counterfeiting

In order to thwart forgeries, EPFL researchers propose a new miniaturized authentication system. By combining both, moire patterns and microlithography techniques, it can be easily recognized by the naked eye and impossible ...

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