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  2. 19-inch rack - Wikipedia

    en.wikipedia.org/wiki/19-inch_rack

    DIN 41494-7 Dimensions of cabinets and suites of racks. DIN 41494-8 Components on front panels; mounting conditions, dimensions; DIN IEC 60297-3-100 (see above in IEC section) A rack's mounting fixture consists of two parallel metal strips (also referred to as posts or panel mounts) standing vertically. The posts are each 0.625 inches (15.88 mm ...

  3. List of Facebook features - Wikipedia

    en.wikipedia.org/wiki/List_of_Facebook_features

    Listen with Friends. Listen with Friends allows Facebook users to listen to music and discuss the tunes using Facebook Chat with friends at the same time. Users can also listen in as a group while one friend acts as a DJ. Up to 50 friends can listen to the same song at the same time, and chat about it.

  4. Medium format - Wikipedia

    en.wikipedia.org/wiki/Medium_format

    The Leaf Aptus-II 12's sensor size of 53.7 mm × 40.3 mm is 92% of the area of a 56 mm × 41.5 mm standard-sized 6 × 4.5 frame, 69% of a 56 mm × 56 mm square-sized 6 × 6 frame, and 45% of the area of a 56 mm × 84 mm 6 × 9 frame. Introduced in December 2010, the Pentax 645D is a 40 megapixel medium-format DSLR. The camera has a 44×33 mm ...

  5. 4K resolution - Wikipedia

    en.wikipedia.org/wiki/4K_resolution

    In the year 2014, the OnePlus One was released with the option to record DCI 4K (4096 × 2160) at 24 frames per second, as well as LG G3 and Samsung Galaxy Note 4 with optical image stabilization. In the year 2015, Apple announced the iPhone 6s was released with the 12 megapixel camera that has the option to record 4K at 25 or 30 frames per second.

  6. Display resolution - Wikipedia

    en.wikipedia.org/wiki/Display_resolution

    The term display resolution is usually used to mean pixel dimensions, the maximum number of pixels in each dimension (e.g. 1920 × 1080 ), which does not tell anything about the pixel density of the display on which the image is actually formed: resolution properly refers to the pixel density, the number of pixels per unit distance or area, not ...

  7. Image sensor format - Wikipedia

    en.wikipedia.org/wiki/Image_sensor_format

    In digital photography, the image sensor format is the shape and size of the image sensor . The image sensor format of a digital camera determines the angle of view of a particular lens when used with a particular sensor. Because the image sensors in many digital cameras are smaller than the 24 mm × 36 mm image area of full-frame 35 mm cameras ...

  8. Facebook plans new group name to revamp image, says The Verge

    www.aol.com/finance/facebook-plans-change-name...

    (Reuters) - Facebook Inc, under fire from regulators and lawmakers over its business practices, is planning to rebrand itself with a new group name that focuses on the metaverse, the Verge ...

  9. Spacetime - Wikipedia

    en.wikipedia.org/wiki/Spacetime

    In physics, spacetime, also called the space-time continuum, is a mathematical model that fuses the three dimensions of space and the one dimension of time into a single four-dimensional continuum. Spacetime diagrams are useful in visualizing and understanding relativistic effects, such as how different observers perceive where and when events ...