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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.
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. Matchboxes generally measure 5 x 3.5 x 1.5 cm. For some applications matchbooks have replaced matchboxes. It is generally used to carry matches in the pocket ...
This is the highest resolution that generally can be displayed on analog computer monitors (most CRTs), and the highest resolution that most analogue video cards and other display transmission hardware (cables, switch boxes, signal boosters) are rated for (at 60 Hz refresh). 24-bit colour requires 9 MB of video memory (and transmission bandwidth) for a single frame.
Digital shelf labels will lessen the burden of updating prices on 120,000 items at Walmart stores. Walmart is replacing its price labels with digital screens—but the company swears it won’t ...
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.
This Mason by Aura digital frame is one of our tech editor's top picks for digital frames, and today, it's on sale at Walmart. Aura Frames. Mason by Aura Frames, $199 $200 Save $1. This 9-inch Wi ...
A polarized 3D system uses polarization glasses to create the illusion of three-dimensional images by restricting the light that reaches each eye (an example of stereoscopy ). To present stereoscopic images and films, two images are projected superimposed onto the same screen or display through different polarizing filters.
Plasma displays are bright (1,000 lux or higher for the display module), have a wide color gamut, and can be produced in fairly large sizes—up to 3.8 metres (150 in) diagonally. They had a very low luminance "dark-room" black level compared with the lighter grey of the unilluminated parts of an LCD screen.