• Thumbnail for Electromagnetic spectrum
    The electromagnetic spectrum is the full range of electromagnetic radiation, organized by frequency or wavelength. The spectrum is divided into separate...
    47 KB (4,685 words) - 15:35, 12 May 2025
  • Thumbnail for Electromagnetic radiation
    In physics, electromagnetic radiation (EMR) is a self-propagating wave of the electromagnetic field that carries momentum and radiant energy through space...
    85 KB (10,022 words) - 00:11, 25 May 2025
  • Thumbnail for Spectrum (physical sciences)
    distribution of electromagnetic radiation emitted or absorbed by that particular object. Devices used to measure an electromagnetic spectrum are called spectrograph...
    22 KB (2,734 words) - 20:30, 23 May 2025
  • Thumbnail for Radiation
    The electromagnetic spectrum is the range of all possible electromagnetic radiation frequencies. The electromagnetic spectrum (usually just spectrum) of...
    48 KB (6,186 words) - 08:39, 21 April 2025
  • Thumbnail for Spread spectrum
    especially radio communication, spread spectrum are techniques by which a signal (e.g., an electrical, electromagnetic, or acoustic) generated with a particular...
    16 KB (1,934 words) - 23:57, 15 September 2024
  • Thumbnail for Electronic warfare
    Electromagnetic warfare or electronic warfare (EW) is warfare involving the use of the electromagnetic spectrum (EM spectrum) or directed energy to control...
    36 KB (3,701 words) - 11:00, 13 May 2025
  • Thumbnail for Spectrum
    term came to apply to the entire electromagnetic spectrum, including radiation not visible to the human eye. Spectrum has since been applied by analogy...
    6 KB (946 words) - 14:43, 21 April 2025
  • Thumbnail for Spectroscopy
    visible light to all bands of the electromagnetic spectrum. Spectroscopy, primarily in the electromagnetic spectrum, is a fundamental exploratory tool...
    44 KB (4,768 words) - 18:59, 23 May 2025
  • Thumbnail for Visible spectrum
    The visible spectrum is the band of the electromagnetic spectrum that is visible to the human eye. Electromagnetic radiation in this range of wavelengths...
    37 KB (4,037 words) - 23:22, 2 May 2025
  • The radio spectrum is the part of the electromagnetic spectrum with frequencies from 3 Hz to 3,000 GHz (3 THz). Electromagnetic waves in this frequency...
    44 KB (2,942 words) - 14:16, 25 May 2025
  • Thumbnail for Multi-spectral camouflage
    parts of the electromagnetic spectrum at the same time. While traditional military camouflage attempts to hide an object in the visible spectrum, multi-spectral...
    11 KB (885 words) - 22:12, 13 February 2025
  • Thumbnail for Electromagnetic field
    electromagnetic fields Electric field Electromagnetism Electromagnetic propagation Electromagnetic radiation Electromagnetic spectrum Electromagnetic...
    22 KB (2,564 words) - 15:25, 17 April 2025
  • Thumbnail for Astronomy
    generally electromagnetic radiation. Observational astronomy may be categorized according to the corresponding region of the electromagnetic spectrum on which...
    103 KB (10,550 words) - 18:32, 6 May 2025
  • Thumbnail for Emission spectrum
    The emission spectrum of a chemical element or chemical compound is the spectrum of frequencies of electromagnetic radiation emitted due to electrons...
    23 KB (2,640 words) - 20:06, 25 May 2025
  • Thumbnail for Radio spectrum pollution
    Radio spectrum pollution is the straying of waves in the radio and electromagnetic spectrums outside their allocations that cause problems for some activities...
    3 KB (220 words) - 18:14, 24 December 2024
  • Thumbnail for Telescope
    range of instruments capable of detecting different regions of the electromagnetic spectrum, and in some cases other types of detectors. The first known practical...
    42 KB (3,970 words) - 17:55, 23 May 2025
  • Thumbnail for Absorption spectroscopy
    this variation is the absorption spectrum. Absorption spectroscopy is performed across the electromagnetic spectrum. Absorption spectroscopy is employed...
    22 KB (2,574 words) - 20:50, 18 March 2025
  • Thumbnail for Radio wave
    waves) are a type of electromagnetic radiation with the lowest frequencies and the longest wavelengths in the electromagnetic spectrum, typically with frequencies...
    38 KB (4,084 words) - 19:52, 11 May 2025
  • Thumbnail for Light
    visible radiation is electromagnetic radiation that can be perceived by the human eye. Visible light spans the visible spectrum and is usually defined...
    53 KB (6,543 words) - 22:33, 3 April 2025
  • warfare. Full spectrum dominance includes the physical battlespace; air, surface and sub-surface as well as the electromagnetic spectrum and information...
    5 KB (551 words) - 05:17, 23 April 2025
  • Thumbnail for Absorption band
    band is a range of wavelengths, frequencies or energies in the electromagnetic spectrum that are characteristic of a particular transition from initial...
    13 KB (1,532 words) - 08:12, 24 May 2025
  • Thumbnail for Wireless
    modulating properties of electromagnetic waves transmitted through space. Specifically, the transmitter generates artificial electromagnetic waves by applying...
    32 KB (3,661 words) - 21:05, 16 April 2025
  • wave and X-ray portion of the electromagnetic spectrum: that is, the relative inability of those kinds of electromagnetic radiation to pass through a particular...
    5 KB (598 words) - 16:19, 25 May 2025
  • Thumbnail for 350th Spectrum Warfare Wing
    wing is responsible for delivering electromagnetic spectrum capabilities to 70 United States and foreign electromagnetic warfare systems. Additionally, the...
    7 KB (314 words) - 17:49, 26 April 2025
  • Spectrum may also refer to: Electromagnetic spectrum Visible spectrum or optical spectrum, a subset of the electromagnetic spectrum Emission spectrum...
    8 KB (982 words) - 09:34, 27 May 2025
  • sources of radiation, especially in the poorly known regions of the electromagnetic spectrum. These sources could be significant or periodic monochromatic signals...
    144 KB (16,930 words) - 01:42, 23 May 2025
  • spread spectrum – Dispersion (optics) – Eigenstate – Eigenvalue – Electromagnetic radiation – Electromagnetic spectroscopy – Electromagnetic spectrum – Electromagnetism...
    9 KB (631 words) - 13:22, 24 April 2025
  • Electromagnetic interference (EMI), also called radio-frequency interference (RFI) when in the radio frequency spectrum, is a disturbance generated by...
    38 KB (4,396 words) - 00:20, 11 November 2024
  • Thumbnail for Spectrum auction
    bands of the electromagnetic spectrum and to assign scarce spectrum resources. Depending on the specific auction format used, a spectrum auction can last...
    46 KB (5,661 words) - 22:56, 15 May 2025
  • Thumbnail for Solar flare
    surrounding plasma. This results in the emission of electromagnetic radiation across the electromagnetic spectrum. The typical time profile of these emissions...
    50 KB (5,297 words) - 19:55, 22 May 2025