Nanoscale Pillars and Holes Lead Could Lead to Brighter Displays, Less Glare

By Dexter Johnson Photo: Dan Hixson/University of Utah College of Engineering Researchers at the University of Utah have etched nanoscale pillars and holes into silicon wafers to create a polarizing filter that lets in more light than today’s filters. Ultimately the new filter could lead to brighter mobile displays. “When …

2014 Holiday Gift Guide

By Stephen Cass, Glenn Zorpette, and Eliza Strickland Photo: Digital Bolex Photo: Digital BolexDigital Bolex D16 Many filmmakers and documentarians of the last century relied on Bolex film cameras—relatively rugged, lightweight, and powered by a hand-wound spring, they were ideal for shooting in the field. Now, 21st-century cinematographers can shoot …

Energy Harvesting Nanogenerators Give 130 Volts at the Touch of a Finger

By Alexander Hellemans Photo: KAIST/Georgia Tech A triboelectric generator [left] produces enough voltage to light 45 blue LEDs. Winter approaches in the Northern Hemisphere, the air is drier, and triboelectrics, electricity caused by friction, is a phenomenon you’ll probably encounter daily. Engineers at Georgia Tech and KAIST are working on …

A Single Nanoparticle Enables Two Medical Imaging Techniques

By Dexter Johnson Image: Christine Daniloff/MIT Researchers at the Massachusetts Institute of Technology (MIT) have developed a nanoparticle that enables both magnetic resonance imaging (MRI) as well as fluorescent imaging in living animals. The researchers believe that a single nanoparticle capable of performing these two functions should be able to …