A new publication from Opto-Electronic Advances; DOI 10.29026/oea.2026.250149, discusses a quarter-wave geometric-phase ...

A new publication from Opto-Electronic Advances; DOI 10.29026/oea.2026.250149, discusses a quarter-wave geometric-phase route ...

Add Yahoo as a preferred source to see more of our stories on Google. How much income is needed to afford a $500,000 mortgage?

Printed circuit boards were once so simple. One or two layers of copper etched on a rectangular fiberglass substrate, with a few holes drilled in key locations so components could be soldered into ...

A Virginia state park has new technology in special viewfinders that allow people who are color blind to see the full color spectrum of the fall foliage. NBC News ...

The changing of seasons -- promises a gorgeous rainbow of fall foliage. And now new technology in special viewfinders allows those who are color blind to see the full color spectrum. The changing of ...