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  2. ISO 21482 - Wikipedia

    en.wikipedia.org/wiki/ISO_21482

    Radiation safety symbol. Website. www.iso.org /standard /40264.html. ISO 21482 is a technical standard that specifies the design and usage of a "supplemental radiation warning symbol", a warning symbol. It is intended to warn people of the dangers of radiation hazards posed by sealed sources, and encourage the viewer to get away from the source.

  3. Cathode-ray tube - Wikipedia

    en.wikipedia.org/wiki/Cathode-ray_tube

    The only visible differences are the single electron gun, the uniform white phosphor coating, and the lack of a shadow mask. A cathode-ray tube (CRT) is a vacuum tube containing one or more electron guns, which emit electron beams that are manipulated to display images on a phosphorescent screen. [ 2 ]

  4. Long-term nuclear waste warning messages - Wikipedia

    en.wikipedia.org/wiki/Long-term_nuclear_waste...

    Long-term nuclear waste warning messages. Long-term nuclear waste warning messages are communication attempts intended to deter human intrusion at nuclear waste repositories in the far future, within or above the order of magnitude of 10,000 years. Nuclear semiotics is an interdisciplinary field of research, first established by the American ...

  5. File:Logo iso radiation.svg - Wikipedia

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

    English: The new supplementary ionizing radiation warning symbol launched on 15 February 2007 by the International Atomic Energy Agency (IAEA) and the International Organization for Standardization (ISO). Contains radiating waves, a skull and crossbones and a running person, on a red triangle. The symbol is intended to be used inside equipment ...

  6. Hazard symbol - Wikipedia

    en.wikipedia.org/wiki/Hazard_symbol

    Hazard symbols are recognizable symbols designed to warn about hazardous or dangerous materials, locations, or objects, including electromagnetic fields, electric currents; harsh, toxic or unstable chemicals (acids, poisons, explosives); and radioactivity. The use of hazard symbols is often regulated by law and directed by standards organizations.

  7. File:Radiation warning symbol.svg - Wikipedia

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

    File:Radiation warning symbol.svg. Size of this PNG preview of this SVG file: 600 × 600 pixels. Other resolutions: 240 × 240 pixels | 480 × 480 pixels | 768 × 768 pixels | 1,024 × 1,024 pixels | 2,048 × 2,048 pixels. Original file ‎ (SVG file, nominally 600 × 600 pixels, file size: 646 bytes) This is a file from the Wikimedia Commons.

  8. Radiation - Wikipedia

    en.wikipedia.org/wiki/Radiation

    Radiation, in general, exists throughout nature, such as in light and sound. In physics, radiation is the emission or transmission of energy in the form of waves or particles through space or a material medium. [1][2] This includes: electromagnetic radiation consists of photons, such as visible radiation.

  9. File:Radiation Symbol Nuclear.svg - Wikipedia

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

    Open Clip Art Library logo This file is made available under the Creative Commons CC0 1.0 Universal Public Domain Dedication . The person who associated a work with this deed has dedicated the work to the public domain by waiving all of their rights to the work worldwide under copyright law, including all related and neighboring rights, to the ...