negative medium
1Negative refraction — is the name for an electromagnetic phenomenon where light rays are refracted at an interface in the reverse sense to that normally expected. Such an effect can be obtained using a metamaterial which has been designed to achieve a negative value… …
2negative — neg‧a‧tive [ˈnegətɪv] adjective 1. bad or harmful: • The Bank s refusal to cut interest rates is having a negative effect on the economy. 2. saying or meaning no : • a negative response 3. considering only the bad qualities of a situation, person …
3Negative air ionization therapy — is the use of air ionisers as an experimental non pharmaceutical treatment for seasonal affective disorder (SAD) and mild depression. For SAD, a randomized controlled trial (RCT) comparing high (4.5x1014 ions/second) and low (1.7x1011… …
4Negative index metamaterials — A negative index metamaterial causes light to refract, or bend, differently than in more common positive refractive index materials. Negative index metamaterials or negative index materials (NIM) are artificial structures where the refractive… …
5Medium format (film) — This article is about medium sized film formats. For formats of a different medium, see format (disambiguation). A size comparison of medium format film (left) and 35 mm film. Medium format film lacks the sprocket holes of 35 mm film. Medium… …
6Negative space — Rubin s vase is an optical illusion in which the negative space around the vase forms the silhouettes of two faces in profile a well known example of figure ground reversal …
7Medium clipper — A Medium clipper is a type of clipper designed for both cargo carrying capacity and speed. An evolutionary adaptation of the extreme clipper, the medium clipper had been invented by 1851, when the hull type appeared in U.S. shipyards. Medium… …
8Medium-density housing — A new medium density development, having just been built in the United Kingdom. Typical features are the apartments in a multi storey (but not high rise) building. Medium density housing is a term used in Australia to describe residential… …
9Growth medium — An agar plate an example of a bacterial growth medium. Specifically, it is a streak plate; the orange lines and dots are formed by bacterial colonies. A growth medium or culture medium is a liquid or gel designed to support the growth of… …
10Digital Negative — For the informal use of digital negative , see Raw image format. Digital Negative (DNG) Filename extension .dng Developed by Adobe Systems Initial release …
