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  2. Roof prism - Wikipedia

    en.wikipedia.org/wiki/Roof_prism

    A roof pentaprism used in Single-lens reflex cameras; the lower right face is the roof (dach). An Amici roof prism. A roof prism, also called a Dachkanten prism or Dach prism (from German: Dachkante, lit. "roof edge"), is a reflective prism containing a section where two faces meet at a 90° angle, resembling the roof of a building and thus the name.

  3. Young and Restless (Prism album) - Wikipedia

    en.wikipedia.org/wiki/Young_and_Restless_(Prism...

    Young and Restless is the fourth studio album by Canadian rock band Prism, released in May 1980 by Capitol Records.The album is notably the band's last studio album to feature lead vocalist Ron Tabak, and it is also the last album to feature their long-time producer, Bruce Fairbairn.

  4. Šidák correction - Wikipedia

    en.wikipedia.org/wiki/Šidák_correction

    The Šidák correction is derived by assuming that the individual tests are independent. Let the significance threshold for each test be α 1 {\displaystyle \alpha _{1}} ; then the probability that at least one of the tests is significant under this threshold is (1 - the probability that none of them are significant).

  5. Prism correction - Wikipedia

    en.wikipedia.org/wiki/Prism_correction

    Prism correction is commonly specified in prism dioptres, a unit of angular measurement that is loosely related to the dioptre. Prism dioptres are represented by the Greek symbol delta (Δ) in superscript. A prism of power 1 Δ would produce 1 unit of displacement for an object held 100 units from the prism. [2]

  6. USA Freedom Act - Wikipedia

    en.wikipedia.org/wiki/USA_Freedom_Act

    Section 811 prohibits anyone, knowingly, unlawfully, and with intent to cause death, serious bodily injury, or substantial damage to property or the environment, from: (1) possessing radioactive material or making or possessing a nuclear explosive device or a radioactive material dispersal or radiation-emitting device; (2) using radioactive ...

  7. The Device - Wikipedia

    en.wikipedia.org/wiki/The_Device

    The Device is a 2014 American science fiction horror film directed by Jeremy Berg. It stars Angela DiMarco and Kate Alden as sisters who must deal with an alien abduction after one's husband, played by David S. Hogan, becomes obsessed with a strange black ball.

  8. Dichroic prism - Wikipedia

    en.wikipedia.org/wiki/Dichroic_prism

    A trichroic prism assembly Dichroic prism. A dichroic prism is a prism that splits light into two beams of differing wavelengths (colour). [1] A trichroic prism assembly combines two dichroic prisms to split an image into 3 colours, typically as red, green and blue of the RGB colour model.

  9. Schmidt–Pechan prism - Wikipedia

    en.wikipedia.org/wiki/Schmidt–Pechan_prism

    The lower prism uses one total internal reflection, followed by a second reflection on the bottom surface to direct the beam into the second Schmidt prism. This second reflection in the lower prism happens at less than the critical angle, therefore the Schmidt–Pechan prism requires a reflective coating for this surface to be usable in ...