City Pedia Web Search

Search results

  1. Results From The WOW.Com Content Network
  2. CT scan - Wikipedia

    en.wikipedia.org/wiki/CT_scan

    The main limitation of this type of CT is the bulk and inertia of the equipment (X-ray tube assembly and detector array on the opposite side of the circle) which limits the speed at which the equipment can spin. Some designs use two X-ray sources and detector arrays offset by an angle, as a technique to improve temporal resolution. [8] [9]

  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. Sword Art Online - Wikipedia

    en.wikipedia.org/wiki/Sword_Art_Online

    Plot. In 2022, a virtual reality massively multiplayer online role-playing game (VRMMORPG) called Sword Art Online ( SAO) was released. With the NerveGear, a helmet that stimulates the user's five senses via their brain, players can experience and control their in-game characters with their minds.

  5. X-Ray Spex - Wikipedia

    en.wikipedia.org/wiki/X-Ray_Spex

    X-Ray Spex was an English punk rock band formed in 1976 in London. During their first incarnation (1976–1979), X-Ray Spex released five singles and one album. [ 1 ] Their 1977 single " Oh Bondage Up Yours! " and 1978 debut album Germfree Adolescents are widely acclaimed as classic punk releases.

  6. Battle of Thermopylae - Wikipedia

    en.wikipedia.org/wiki/Battle_of_Thermopylae

    A second reason is the example it set of free men, fighting for their country and their freedom: So almost immediately, contemporary Greeks saw Thermopylae as a critical moral and culture lesson. In universal terms, a small, free people had willingly outfought huge numbers of imperial subjects who advanced under the lash.

  7. Gamma ray - Wikipedia

    en.wikipedia.org/wiki/Gamma_ray

    A gamma ray, also known as gamma radiation (symbol. γ. ), is a penetrating form of electromagnetic radiation arising from the radioactive decay of atomic nuclei. It consists of the shortest wavelength electromagnetic waves, typically shorter than those of X-rays. With frequencies above 30 exahertz ( 3 × 1019 Hz) and wavelengths less than 10 ...

  8. Blu-ray - Wikipedia

    en.wikipedia.org/wiki/Blu-Ray

    t. e. Blu-ray ( Blu-ray Disc or BD) is a digital optical disc data storage format designed to supersede the DVD format. It was invented and developed in 2005 and released worldwide on June 20, 2006, capable of storing several hours of high-definition video ( HDTV 720p and 1080p ).

  9. QR code - Wikipedia

    en.wikipedia.org/wiki/QR_Code

    The QR code system was invented in 1994, at the Denso Wave automotive products company, in Japan. [5] [6] [7] The initial alternating-square design presented by the team of researchers, headed by Masahiro Hara, was influenced by the black counters and the white counters played on a Go board; [8] the pattern of position detection was found and determined by applying the least-used ratio (1:1:3 ...