opacity barrier
11insulator — /in seuh lay teuhr, ins yeuh /, n. 1. Elect. a. a material of such low conductivity that the flow of current through it is negligible. b. insulating material, often glass or porcelain, in a unit form designed so as to support a charged conductor… …
12Big Bang — This article is about the cosmological model. For the sitcom, see The Big Bang Theory. For other uses, see Big Bang (disambiguation) …
13Metallic bond — Metallic bonding is the electrostatic attractive forces between the delocalized electrons, called conduction electrons, gathered in an electron sea , and the positively charged metal ions. Understood as the sharing of free electrons among a… …
14Monetary policy of the United States — Banking in the United States Monetary policy The Federal Reserve System Regulation Lending Credit card Deposit accounts Savings account Checking account Money market account Certificate of deposit …
15Tyvek — (TIE veck) is a brand of flashspun high density polyethylene fibers, a synthetic material; the name is a registered trademark of the DuPont Company. The material is very strong; it is difficult to tear but can easily be cut with scissors or any… …
16Coating — is a covering that is applied to the surface of an object, usually referred to as the substrate. In many cases coatings are applied to improve surface properties of the substrate, such as appearance, adhesion, wetability, corrosion resistance,… …
17Subtitle (captioning) — For other uses, see Subtitle. Part of a series on Translation Types …
18Painting — For other uses, see Painting (disambiguation). The Mona Lisa, by Italian painter Leonardo da Vinci, is one of the most recognizable artistic paintings in the world. Painting is the practice of applying paint, pig …
19industrial glass — Introduction solid material that is normally lustrous and transparent in appearance and that shows great durability under exposure to the natural elements. These three properties lustre, transparency, and durability make glass a favoured… …
20mineral deposit — Introduction aggregate of a mineral in an unusually high concentration. About half of the known chemical elements (chemical element) possess some metallic (metal) properties. The term metal, however, is reserved for those chemical… …
