Search results
Results from the WOW.Com Content Network
Opacity is the measure of impenetrability to electromagnetic or other kinds of radiation, especially visible light. In radiative transfer , it describes the absorption and scattering of radiation in a medium , such as a plasma , dielectric , shielding material , glass, etc.
The distinction is irrelevant for an unattenuated wave, but becomes relevant in some cases below. For example, there are two definitions of complex refractive index, one with a positive imaginary part and one with a negative imaginary part, derived from the two different conventions. [2] The two definitions are complex conjugates of each other.
A research proposal is a document proposing a research project, generally in the sciences or academia, and generally constitutes a request for sponsorship of that research. [1] Proposals are evaluated on the cost and potential impact of the proposed research, and on the soundness of the proposed plan for carrying it out. [ 2 ]
In analytic philosophy and computer science, referential transparency and referential opacity are properties of linguistic constructions, [a] and by extension of languages. A linguistic construction is called referentially transparent when for any expression built from it, replacing a subexpression with another one that denotes the same value [b] does not change the value of the expression.
The term is used in philosophical theories of reference, and is to be contrasted with referentially transparent context.In rough outline: Opacity: "Mary believes that Cicero is a great orator" gives rise to an opaque context; although Cicero was also called 'Tully', [2] we can't simply substitute 'Tully' for 'Cicero' in this context ("Mary believes that Tully is a great orator") and guarantee ...
Which produces this: Example Text Invalid inputs for opacity will produce text will full opacity. The above documentation is transcluded from Template:Opacity/doc .
Another example is Victor Weisskopf's pamphlet Modern Physics from an Elementary Point of View. [8] In these notes Weisskopf used back-of-the-envelope calculations to calculate the size of a hydrogen atom, a star, and a mountain, all using elementary physics.
The following is used to create text with 25% opacity: {{opacity|0.25|Example Text}} Which produces this: Example Text You can also leave the first parameter blank to use the default of 50%.