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  2. Electromagnetic radiation - Wikipedia

    en.wikipedia.org/wiki/Electromagnetic_radiation

    A monochromatic wave (a wave of a single frequency) consists of successive troughs and crests, and the distance between two adjacent crests or troughs is called the wavelength. Waves of the electromagnetic spectrum vary in size, from very long radio waves longer than a continent to very short gamma rays smaller than atom nuclei.

  3. File:Kondratieff Wave-HQ.png - Wikipedia

    en.wikipedia.org/wiki/File:Kondratieff_Wave-HQ.png

    File:Kondratieff Wave-HQ.png. Size of this preview: 800 × 415 pixels. Other resolutions: 320 × 166 pixels | 640 × 332 pixels | 1,347 × 698 pixels. Original file ‎ (1,347 × 698 pixels, file size: 36 KB, MIME type: image/png) Wikimedia Commons Commons is a freely licensed media file repository. . This is a retouched picture, which means ...

  4. 3D audio effect - Wikipedia

    en.wikipedia.org/wiki/3D_audio_effect

    3D audio effect. 3D audio effects are a group of sound effects that manipulate the sound produced by stereo speakers, surround-sound speakers, speaker-arrays, or headphones. This frequently involves the virtual placement of sound sources anywhere in three-dimensional space, including behind, above or below the listener. [1]

  5. Waveguide - Wikipedia

    en.wikipedia.org/wiki/Waveguide

    A waveguide is a structure that guides waves by restricting the transmission of energy to one direction. Common types of waveguides include acoustic waveguides which direct sound, optical waveguides which direct light, and radio-frequency waveguides which direct electromagnetic waves other than light like radio waves .

  6. Transparency (data compression) - Wikipedia

    en.wikipedia.org/wiki/Transparency_(data...

    Transparency (data compression) In data compression and psychoacoustics, transparency is the result of lossy data compression accurate enough that the compressed result is perceptually indistinguishable from the uncompressed input, i.e. perceptually lossless . A transparency threshold is a given value at which transparency is reached.

  7. File:Sound wave holding shape - Large 01.svg - Wikipedia

    en.wikipedia.org/wiki/File:Sound_wave_holding...

    English: This image is to be used as a holding shape to create photographic sound waves, using the clipping mask tool in your design software of choice. Please do not use this image as a substitute for photographic / colour soundwaves in your promotional materials.

  8. File:Wave packet propagation (phase faster than group ...

    en.wikipedia.org/wiki/File:Wave_packet...

    You are free: to share – to copy, distribute and transmit the work; to remix – to adapt the work; Under the following conditions: attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made.

  9. File:Kondratieff Wave.svg - Wikipedia

    en.wikipedia.org/wiki/File:Kondratieff_Wave.svg

    File:Kondratieff Wave.svg. Size of this PNG preview of this SVG file: 520 × 239 pixels. Other resolutions: 320 × 147 pixels | 640 × 294 pixels | 1,024 × 471 pixels | 1,280 × 588 pixels | 2,560 × 1,177 pixels. This is a file from the Wikimedia Commons. Information from its description page there is shown below.