- News Home
17 April 2014 12:48 pm ,
Vol. 344 ,
Officials last week revealed that the U.S. contribution to ITER could cost $3.9 billion by 2034—roughly four times the...
An experimental hepatitis B drug that looked safe in animal trials tragically killed five of 15 patients in 1993. Now,...
Using the two high-quality genomes that exist for Neandertals and Denisovans, researchers find clues to gene activity...
A new report from the Intergovernmental Panel on Climate Change (IPCC) concludes that humanity has done little to slow...
Astronomers have discovered an Earth-sized planet in the habitable zone of a red dwarf—a star cooler than the sun—500...
Three years ago, Jennifer Francis of Rutgers University proposed that a warming Arctic was altering the behavior of the...
- 17 April 2014 12:48 pm , Vol. 344 , #6181
- About Us
Video: Turning Your Windows Into Movie Screens
21 January 2014 11:00 am
The latest Hollywood blockbuster may be coming soon to a window near you. Researchers have developed a see-through video screen embedded with silver nanoparticles that's both scalable and relatively inexpensive. While traditional projection screens come in pearly white in order to evenly reflect the whole spectrum of visible light, the new display reflects only a single, specific shade of blue. To accomplish this, the researchers took uniform bunches of silver molecules, called silver nanoparticles, with diameters of 62 nanometers. (One billion could fit on a pinhead.) These nanoparticles interact only with bits of light with a precise blue wavelength, allowing other light to pass through unimpeded. The researchers completed their display by mixing the silver nanoparticles into a water-soluble transparent polymer and hardening it in a frame. Total cost of materials? Only $10. Using a laser projector tuned to the proper wavelength light, the researchers displayed a video of floating circles on their display while the screen remained otherwise transparent, they report online today in Nature Communications. While the current display works only with a single color, the team says mixing different sized nanoparticles would allow them to simultaneously display red, green, and blue light. By combining these three additive primary colors together, they could display the entire visual spectrum. The researchers predict their technology could one day be used to project speedometers on car windshields, present moving advertisements on store windows, and even turn skyscrapers into giant movie screens.