Latest Vladimir M. Shalaev Stories
Researchers have overcome a fundamental obstacle in using new "metamaterials" for radical advances in optical technologies, including ultra-powerful microscopes and computers and a possible invisibility cloak. The metamaterials have been plagued by a major limitation: too much light is "lost," or absorbed by metals such as silver and gold contained in the metamaterials, making them impractical for optical devices. However, a Purdue University team has solved this hurdle, culminating three...
- The navel or umbilicus.
- In Greek archaeology: A central boss, as on a shield, a bowl, etc.