Latest Evanescent wave Stories
Superlenses earned their superlative by being able to capture the "evanescent" light waves that blossom close to an illuminated surface and never travel far enough to be "seen" by a conventional lens. Superlenses hold enormous potential in a range of applications, depending upon the form of light they capture, but their use has been limited because most have been made from elaborate artificial constructs known as metamaterials. The unique optical properties of metamaterials, which include the...
By Robert Sanders, UC Berkeley University of California, Berkeley, scientists have found a way to overcome one of the main limitations of ultrasound imaging "“ the poor resolution of the picture. Everyone who has had an ultrasound, including most pregnant women, is familiar with the impressionistic nature of the images. One of the limits to the detail obtainable with sonography is the frequency of the sound. The basic laws of physics dictate that the smallest objects you can "see" are...
- A cloth or covering, more or less ornamented, laid over the saddle or furniture of a horse, especially of a sumpter-horse or horse of state.
- Clothing, especially sumptuous clothing; equipment; outfit.
- To cover with a caparison, as a horse.
- To dress sumptuously; adorn with rich dress.