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  2. Parts-per notation - Wikipedia

    en.wikipedia.org/wiki/Parts-per_notation

    Fluorescein aqueous solutions, diluted from 10,000 to 1 parts-per-million in intervals of 10 fold dilution. At 1 ppm the solution is a very pale yellow. As the concentration increases the colour becomes a more vibrant yellow, then orange, with the final 10,000 ppm a deep red colour.

  3. Category:Paintings by subject - Wikipedia

    en.wikipedia.org/wiki/Category:Paintings_by_subject

    This category is for categories of paintings by subject matter ... Paintings about art (3 C, 1 P) Paintings of art galleries (16 P) C. Paintings set in cabarets (8 P)

  4. Multiple choice - Wikipedia

    en.wikipedia.org/wiki/Multiple_choice

    A multiple choice question, with days of the week as potential answers. Multiple choice (MC), [1] objective response or MCQ(for multiple choice question) is a form of an objective assessment in which respondents are asked to select only the correct answer from the choices offered as a list.

  5. Matterism - Wikipedia

    en.wikipedia.org/wiki/Matterism

    Matterism also known as Matter Painting (French: Haute Pâte, lit. 'thick paste') refers to a style of painting that emphasizes the material qualities of paint through heavy impasto . The style marked a return to impulses characteristic of abstract expressionism.

  6. Pompadour at Her Toilette - Wikipedia

    en.wikipedia.org/wiki/Pompadour_at_Her_Toilette

    The painting Pompadour at Her Toilette is novel in its two-fold approach to self-representation in art-making. [10] The portrayal of Madame de Pompadour applying makeup parallels to Boucher's application of oil paint on the canvas, blurring the lines between the roles of artist and subject. [ 10 ]

  7. Total dissolved solids - Wikipedia

    en.wikipedia.org/wiki/Total_dissolved_solids

    Total dissolved solids (TDS) is a measure of the dissolved combined content of all inorganic and organic substances present in a liquid in molecular, ionized, or micro-granular (colloidal sol) suspended form. TDS are often measured in parts per million (ppm). TDS in water can be measured using a digital meter. [1]

  8. Proton nuclear magnetic resonance - Wikipedia

    en.wikipedia.org/wiki/Proton_nuclear_magnetic...

    The total area of the 1 ppm CH 2 peak will be twice that of the 2.5 ppm CH peak. The CH 2 peak will be split into a doublet by the CH peak—with one peak at 1 ppm + 3.5 Hz and one at 1 ppm − 3.5 Hz (total splitting or coupling constant is 7 Hz). In consequence the CH peak at 2.5 ppm will be split twice by each proton from the CH 2. The first ...

  9. Study (art) - Wikipedia

    en.wikipedia.org/wiki/Study_(art)

    In art, a study is a drawing, sketch or painting done in preparation for a finished piece, as visual notes, or as practice. [1] Studies are often used to understand the problems involved in rendering subjects and to plan the elements to be used in finished works, such as light, color, form, perspective and composition. [ 2 ]