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  2. 1951 USAF resolution test chart - Wikipedia

    en.wikipedia.org/.../1951_USAF_resolution_test_chart

    A 1951 USAF resolution test chart is a microscopic optical resolution test device originally defined by the U.S. Air Force MIL-STD-150A standard of 1951. The design provides numerous small target shapes exhibiting a stepped assortment of precise spatial frequency specimens. It is widely used in optical engineering laboratory work to analyze and ...

  3. EURion constellation - Wikipedia

    en.wikipedia.org/wiki/EURion_constellation

    The EURion constellation (also known as Omron rings[1] or doughnuts[2]) is a pattern of symbols incorporated into a number of secure documents such as banknotes, cheques, and ownership title certificates designs worldwide since about 1996. It is added to help imaging software detect the presence of such a document in a digital image.

  4. Drawdown chart - Wikipedia

    en.wikipedia.org/wiki/Drawdown_chart

    Drawdown chart. Drawdown charts are rectangular pieces of non-fluorescent paper [1] which are used to test a variety of coating properties. These properties include opacity, spreading rate, penetration, and flow & leveling behavior. [2] This non-fluorescent material has to be especially rugged in order to maintain its structure and give ...

  5. Nautical chart - Wikipedia

    en.wikipedia.org/wiki/Nautical_chart

    A nautical chart or hydrographic chart is a graphic representation of a sea region or water body and adjacent coasts or banks. Depending on the scale of the chart, it may show depths of water (bathymetry) and heights of land (topography), natural features of the seabed, details of the coastline, navigational hazards, locations of natural and ...

  6. Helicopter height–velocity diagram - Wikipedia

    en.wikipedia.org/wiki/Helicopter_height...

    The FAA states "The height–velocity diagram or H/V curve is a graph charting the safe/unsafe flight profiles relevant to a specific helicopter. As operation outside the safe area of the chart can be fatal in the event of a power or transmission failure it is sometimes referred to as the dead man's curve." [1]

  7. List of United States Army Field Manuals - Wikipedia

    en.wikipedia.org/wiki/List_of_United_States_Army...

    including C 1, 25 July 1952. This manual supersedes FM 100–5, 15 June 1944. This manual supersedes FM 100–5, 15 June 1944. including C 1, 16 September 1942; C 2, 12 November 1942; and C 3, 26 April 1943. These regulations supersede FM 100–5, Tentative Field Service Regulations, Operations, October 1, 1939.

  8. Bloodhound Can't Contain His 'Happy Hops' When He Hears ... - AOL

    www.aol.com/bloodhound-cant-contain-happy-hops...

    For one Bloodhound, though, he expresses excitement through his legs! Big Red, whose iconic full name is Clifford the Big Red Dog, couldn't contain his elation when he heard his neighbor BFF ...

  9. List of Star Trek technical manuals - Wikipedia

    en.wikipedia.org/wiki/List_of_Star_Trek...

    technical manuals. Star Trek Technical Manuals are a number of both official and fan-produced works detailing the technology of the fictional Star Trek universe; most pertain to starship design, though others target equipment used in the various Star Trek television series and films. Franz Joseph Schnaubelt published the original Star Fleet ...