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Matchbook cover, World War II, Uncle Sam. A "matchcover", or "matchbook cover", is a thin cardboard covering that folds over match sticks in a "book" or "pack" of matches. Covers have been used as a form of advertising since 1894, two years after they were patented, and since then, have attracted people who enjoy the hobby of collecting.
Screen-door effect. The screen-door effect ( SDE) is a visual artifact of displays, where the fine lines separating pixels (or subpixels) become visible in the displayed image. This can be seen in digital projector images and regular displays under magnification or at close range, but the increases in display resolutions have made this much ...
A matchbox is a container or case made of cardboard, thin wood or metal on some models, and designed to be filled with matches. In short, is a box that contains safety matches made of wooden sticks or cardboard stripes. It commonly has a coarse striking surface on one edge for lighting the matches contained inside.
Description and design. Window coverings comprise materials used to cover a window to manage sunlight, privacy, additional weatherproofing or for purely decorative purposes. Window coverings are typically used on the interior side of windows, but exterior solutions are also available. Window coverings may be used to manage overheating and glare ...
See-through display. An optical combiner for a see-through display. A see-through display or transparent display is an electronic display that allows the user to see what is shown on the screen while still being able to see through it. The main applications of this type of display are in head-up displays, augmented reality systems, digital ...
The MacBook is a line of Mac laptops sold by Apple Inc. between May 2006 and February 2012. It replaced the iBook series of notebooks as a part of Apple's transition from PowerPC to Intel processors. Positioned as the low end of the MacBook family, below the premium ultra-portable MacBook Air and the performance-oriented MacBook Pro, [ 1] the ...
Platform screen doors on the Elizabeth line at Farringdon in 2019 "Horizontal lift" style doors at Lomonosovskaya station on the Saint Petersburg Metro, the first type of screen doors in the world The idea for platform edge doors dates from as early as 1908, when Charles S. Shute of Boston was granted a patent for "Safety fence and gate for railway-platforms". [ 2 ]
Flexible screens can open the doors to novel and alternative authentication schemes by emphasizing the interaction between the user and the touch screen. In “Bend Passwords: Using Gestures to Authenticate on Flexible Devices,” the authors introduce a new method called Bend Passwords where users perform bending gestures and deform the touch screen to unlock the phone.