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  2. Mark Kistler - Wikipedia

    en.wikipedia.org/wiki/Mark_Kistler

    The show demonstrated to viewers techniques on how to Draw-In-3D and having fun while doing it. In 2010 Mark was awarded an Emmy for the series for "teaching kids to draw in 3-D while imparting messages of self-esteem, and appreciation for literature, science, classic art and the environment. [4]

  3. Electromagnetic spectrum - Wikipedia

    en.wikipedia.org/wiki/Electromagnetic_spectrum

    The Sun emits its peak power in the visible region, although integrating the entire emission power spectrum through all wavelengths shows that the Sun emits slightly more infrared than visible light. [16] By definition, visible light is the part of the EM spectrum the human eye is the most sensitive to. Visible light (and near-infrared light ...

  4. Visible spectrum - Wikipedia

    en.wikipedia.org/wiki/Visible_spectrum

    Visible-light spectroscopy is an important tool in astronomy (as is spectroscopy at other wavelengths), where scientists use it to analyze the properties of distant objects. Chemical elements and small molecules can be detected in astronomical objects by observing emission lines and absorption lines.

  5. Winky Dink and You - Wikipedia

    en.wikipedia.org/wiki/Winky_Dink_and_You

    Children interacting with the Winky Dink and You program. The central gimmick of the show, praised by Microsoft co-founder Bill Gates as "the first interactive TV show", [3] was the use of a "magic drawing screen" — a piece of transparent vinyl plastic that stuck to the television screen by means of static electricity.

  6. Optical window - Wikipedia

    en.wikipedia.org/wiki/Optical_window

    Up until the 1940s, astronomers could only use the visible and near infrared portions of the optical spectrum for their observations. The first great astronomical discoveries such as the ones made by the famous Italian polymath Galileo Galilei were made using optical telescopes that received light reaching the ground through the optical window ...

  7. Visible light communication - Wikipedia

    en.wikipedia.org/wiki/Visible_light_communication

    Visible light is only a small portion of the electromagnetic spectrum. In telecommunications, visible light communication (VLC) is the use of visible light (light with a frequency of 400–800 THz/wavelength of 780–375 nm) as a transmission medium. VLC is a subset of optical wireless communications technologies.

  8. Light - Wikipedia

    en.wikipedia.org/wiki/Light

    Light, visible light, or visible radiation is electromagnetic radiation that can be perceived by the human eye. [1] Visible light spans the visible spectrum and is usually defined as having wavelengths in the range of 400–700 nanometres (nm), corresponding to frequencies of 750–420 terahertz .

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