optical conductivity
61Coaxial cable — RG 59 flexible coaxial cable composed of: A: outer plastic sheath B: woven copper shield C: inner dielectric insulator D: copper core Coaxial cable, or coax, has an inner conductor surrounded by a flexible, tubular insulating layer, surrounded by …
62Copper wire and cable — Copper has been used in electric wiring since the invention of the electromagnet and the telegraph in the 1820s.[1][2] The invention of the telephone in 1876 proved to be another early boon for copper wire.[3] Today, despite competition from… …
63Metalloid —   13 14 15 16 17   2  B Boron …
64Conductive polymer — This article is about bulk applications of conductive polymers. For single molecule electronics, see Molecular scale electronics. Chemical structures of some conductive polymers. From top left clockwise: polyacetylene; polyphenylene vinylene;… …
65Nanopolymers — The word nano is derived from the Greek word for “dwarf”. It is the prefix for units of 10 9. In a nutshell, nanoscience is the study of the extremely tiny. Nanoscience is concerned with the study of the unique properties of matter at its nano… …
66Еременко Виктор Валентинович — Виктор Валентинович Еременко Дата рождения: 26 июля 1932(1932 07 26) (80 лет) Место рождения: г. Харьков, Украина, СССР Страна …
67Nobel Prizes — ▪ 2009 Introduction Prize for Peace The 2008 Nobel Prize for Peace was awarded to Martti Ahtisaari, former president (1994–2000) of Finland, for his work over more than 30 years in settling international disputes, many involving ethnic,… …
68acid–base reaction — ▪ chemistry Introduction a type of chemical process typified by the exchange of one or more hydrogen ions, H+, between species that may be neutral (molecules, such as water, H2O; or acetic acid, CH3CO2H) or electrically charged (ions, such… …
69Scanning electron microscope — These pollen grains taken on an SEM show the characteristic depth of field of SEM micrographs …
70Wide bandgap semiconductors — are semiconductor materials with electronic band gaps larger than one or two electronvolts (eV). The exact threshold of wideness often depends on the application, such as optoelectronic and power devices. Wide bandgap materials are often utilized …
