high-power microscopic image
51Refractive index — Refraction of light at the interface between two media. In optics the refractive index or index of refraction of a substance or medium is a measure of the speed of light in that medium. It is expressed as a ratio of the speed of light in vacuum… …
52Media and Publishing — ▪ 2007 Introduction The Frankfurt Book Fair enjoyed a record number of exhibitors, and the distribution of free newspapers surged. TV broadcasters experimented with ways of engaging their audience via the Internet; mobile TV grew; magazine… …
53List of Heroes characters — From left to right: Micah, Niki, Nathan, Peter, Noah, Claire, Hiro, Mohinder, Matt, Sylar This is a list of fictional characters in the television series Heroes …
54X-ray computed tomography — For non medical computed tomography, see Industrial CT Scanning. catSCAN redirects here. For the Transformers character, see Transformers: Universe. X ray computed tomography Intervention A patient is receiving a CT scan for cancer. Outsid …
55International Space Station — ISS redirects here. For other uses, see ISS (disambiguation). International Space Station …
56United Airlines Flight 232 — N1819U on its final descent, with visible damage on the horizontal stabilizer and fuselage tail cone Accident summary Date …
57Neuroprosthetics — (also called neural prosthetics) is a discipline related to neuroscience and biomedical engineering concerned with developing neural prostheses. Neural prostheses are a series of devices that can substitute a motor, sensory or cognitive modality… …
58cosmos — /koz meuhs, mohs/, n., pl. cosmos, cosmoses for 2, 4. 1. the world or universe regarded as an orderly, harmonious system. 2. a complete, orderly, harmonious system. 3. order; harmony. 4. any composite plant of the genus Cosmos, of tropical… …
59motion picture — motion picture, adj. 1. a sequence of consecutive pictures of objects photographed in motion by a specially designed camera (motion picture camera) and thrown on a screen by a projector (motion picture projector) in such rapid succession as to… …
60science, history of — Introduction the history of science from its beginnings in prehistoric times to the 20th century. On the simplest level, science is knowledge of the world of nature. There are many regularities in nature that mankind has had to… …
