Chemists, engineers craft adjustable arrays o
<p>A Nebraska team has created minuscule lenses that it can expand or contract in mere seconds &mdash; modifying their magnification, focal length and other optical properties in the process. That&nbsp;on-the-fly adaptability bodes well for the design&rsquo;s use in micro-projection systems and even the culturing of cells, the researchers said.</p>
Source: eurekalert.org