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  2. PDF - Wikipedia

    en.wikipedia.org/wiki/PDF

    A PDF file is organized using ASCII characters, except for certain elements that may have binary content. The file starts with a header containing a magic number (as a readable string) and the version of the format, for example %PDF-1.7. The format is a subset of a COS ("Carousel" Object Structure) format. [23]

  3. Size effect on structural strength - Wikipedia

    en.wikipedia.org/wiki/Size_Effect_on_Structural...

    The structural size effect concerns structures made of the same material, with the same microstructure. It must be distinguished from the size effect of material inhomogeneities, particularly the Hall-Petch effect, which describes how the material strength increases with decreasing grain size in polycrystalline metals.

  4. AutoCAD DXF - Wikipedia

    en.wikipedia.org/wiki/AutoCAD_DXF

    AutoCAD DXF (Drawing Interchange Format, or Drawing Exchange Format) is a CAD data file format developed by Autodesk [2] for enabling data interoperability between AutoCAD on different platforms. [ 3 ]

  5. AutoCAD version history - Wikipedia

    en.wikipedia.org/wiki/AutoCAD_version_history

    AutoCAD opens documents with DWG compatibility as a "DWG file format version code" where the specific version code can be found by opening the .dwg file in Windows Notepad or any text editor program. The file format version code is dependent on the AutoCAD version. [2]

  6. These Are the Best New Songs We Heard This Month - AOL

    www.aol.com/best-songs-heard-month-142900895.html

    We finally—finally—made it to the end of the year.And though the music releases have gone from summer’s deluge to a steady trickle, that doesn’t mean there aren’t some great new songs in ...

  7. .dwg - Wikipedia

    en.wikipedia.org/wiki/.dwg

    DWG (from drawing) is a proprietary [3] binary file format used for storing two- and three- dimensional design data and metadata.It is the native format for several CAD packages including DraftSight, AutoCAD, ZWCAD, IntelliCAD (and its variants), Caddie and Open Design Alliance compliant applications.

  8. More than 1 million will pack Times Square in NYC tonight ...

    www.aol.com/more-1-million-pack-times-195747538.html

    The commissioner of the New York Police Department said there are "no specific credible threats" to the New Year's Eve celebration in Times Square.

  9. Computer-aided design - Wikipedia

    en.wikipedia.org/wiki/Computer-aided_design

    CAD is an example of the pervasive effect computers were beginning to have on the industry. Current computer-aided design software packages range from 2D vector -based drafting systems to 3D solid and surface modelers .