enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. Atmospheric diffraction - Wikipedia

    en.wikipedia.org/wiki/Atmospheric_diffraction

    Atmospheric diffraction is manifested in the following principal ways: Optical atmospheric diffraction Radio wave diffraction is the scattering of radio frequency or lower frequencies from the Earth's ionosphere, resulting in the ability to achieve greater distance radio broadcasting .

  3. Atmospheric optics - Wikipedia

    en.wikipedia.org/wiki/Atmospheric_optics

    Atmospheric diffraction is a visual effect caused when sunlight is bent by particles suspended in the air. Main article: Atmospheric diffraction This article should include a summary of Atmospheric diffraction .

  4. Atmospheric refraction - Wikipedia

    en.wikipedia.org/wiki/Atmospheric_refraction

    Atmospheric refraction of the light from a star is zero in the zenith, less than 1′ (one arc-minute) at 45° apparent altitude, and still only 5.3′ at 10° altitude; it quickly increases as altitude decreases, reaching 9.9′ at 5° altitude, 18.4′ at 2° altitude, and 35.4′ at the horizon; [4] all values are for 10 °C and 1013.25 hPa ...

  5. Optical phenomenon - Wikipedia

    en.wikipedia.org/wiki/Optical_phenomenon

    Common optical phenomena are often due to the interaction of light from the Sun or Moon with the atmosphere, clouds, water, dust, and other particulates. One common example is the rainbow , when light from the Sun is reflected and refracted by water droplets.

  6. Radio propagation - Wikipedia

    en.wikipedia.org/wiki/Radio_propagation

    Radio propagation is the behavior of radio waves as they travel, or are propagated, from one point to another in vacuum, or into various parts of the atmosphere. [1]: 26‑1 As a form of electromagnetic radiation, like light waves, radio waves are affected by the phenomena of reflection, refraction, diffraction, absorption, polarization, and scattering. [2]

  7. List of atmospheric optical phenomena - Wikipedia

    en.wikipedia.org/wiki/List_of_atmospheric...

    Atmospheric optical phenomena include: Afterglow; Airglow; Alexander's band, the dark region between the two bows of a double rainbow. Alpenglow; Anthelion; Anticrepuscular rays; Aurora (northern and southern lights, aurora borealis and aurora australis) Belt of Venus; Brocken Spectre; Circumhorizontal arc; Circumzenithal arc; Cloud iridescence ...

  8. Line-of-sight propagation - Wikipedia

    en.wikipedia.org/wiki/Line-of-sight_propagation

    diffraction through windows, and attenuated passage through walls, into the building; reflection, diffraction, and attenuated passage through internal walls, floors and ceilings within the building; The combination of all these effects makes the mobile phone propagation environment highly complex, with multipath effects and extensive Rayleigh ...

  9. Diffraction - Wikipedia

    en.wikipedia.org/wiki/Diffraction

    The effects of diffraction are often seen in everyday life. The most striking examples of diffraction are those that involve light; for example, the closely spaced tracks on a CD or DVD act as a diffraction grating to form the familiar rainbow pattern seen when looking at a disc.