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  2. Blood red - Wikipedia

    en.wikipedia.org/wiki/Blood_red

    The colour blood red is a dark shade of the colour red meant to resemble the colour of human blood (which is composed of oxygenated red erythrocytes, white leukocytes, and yellow blood plasma). [2] It is the iron in hemoglobin specifically that gives blood its red colour.

  3. Division sign - Wikipedia

    en.wikipedia.org/wiki/Division_sign

    It may also be produced using its Unicode code-point (F7), by pressing Control+⇧ Shift+u f7space. In LaTeX , the division sign is obtained by the command \div . In ChromeOS (with International/Extended keyboard setting), the division sign is obtained by pressing AltGr + ⇧ Shift + + .

  4. List of HTTP status codes - Wikipedia

    en.wikipedia.org/wiki/List_of_HTTP_status_codes

    The Internet Assigned Numbers Authority (IANA) maintains the official registry of HTTP status codes. [2] All HTTP response status codes are separated into five classes or categories. The first digit of the status code defines the class of response, while the last two digits do not have any classifying or categorization role.

  5. Numerical Methods for Partial Differential Equations - Wikipedia

    en.wikipedia.org/wiki/Numerical_Methods_for...

    Numerical Methods for Partial Differential Equations is a bimonthly peer-reviewed scientific journal covering the development and analysis of new methods for the numerical solution of partial differential equations. It was established in 1985 and is published by John Wiley & Sons.

  6. Fresnel equations - Wikipedia

    en.wikipedia.org/wiki/Fresnel_equations

    Putting B = μH and D = ϵE ‍, ‍ as above, we can eliminate B and D to obtain equations in only E and H: = =. If the material parameters ϵ and μ are real (as in a lossless dielectric), these equations show that k , E , H form a right-handed orthogonal triad, so that the same equations apply to the magnitudes of the respective vectors.

  7. Web colors - Wikipedia

    en.wikipedia.org/wiki/Web_colors

    In some uses, hexadecimal color codes are specified with notation using a leading number sign (#). [1] [2] A color is specified according to the intensity of its red, green and blue components, each represented by eight bits. Thus, there are 24 bits used to specify a web color within the sRGB gamut, and 16,777,216 colors that may be so specified.

  8. Color of chemicals - Wikipedia

    en.wikipedia.org/wiki/Color_of_chemicals

    Lycopene is a classic example of a compound with extensive conjugation (11 conjugated double bonds), giving rise to an intense red color (lycopene is responsible for the color of tomatoes). Charge-transfer complexes tend to have very intense colors for different reasons.

  9. Shockley diode equation - Wikipedia

    en.wikipedia.org/wiki/Shockley_diode_equation

    Shockley derives an equation for the voltage across a p-n junction in a long article published in 1949. [2] Later he gives a corresponding equation for current as a function of voltage under additional assumptions, which is the equation we call the Shockley ideal diode equation. [3]