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A whiteboard (also known by marker board, dry-erase board, dry-wipe board, and pen-board) is a glossy, usually white surface for making non-permanent markings. Whiteboards are analogous to blackboards, but with a smoother surface allowing for rapid marking and erasing of markings on their surface. The popularity of whiteboards increased rapidly ...
An interactive whiteboard (IWB) device can either be a standalone computer or a large, functioning touchpad for computers to use. Interactive whiteboards are widely used in classrooms, boardrooms, and training environments, providing an innovative way to share information, facilitate discussions, and enhance the overall learning or business communication experience.
A multisided record is a type of vinyl record that has more than one groove per side. This technique allows hidden tracks to be encoded on LPs, 45 rpms and 78 rpms. On a disc that has a multi-groove, whether the listener plays the main track or the hidden track depends on where the stylus is cued.
Initially, double-sided disks had to be removed and flipped over to access data on the other side, but eventually, devices were made that could read both sides without the need to eject the disk. [2] Manufacturers sold both single-sided and double-sided disks with the double-sided disks being typically 50% more expensive than single-sided disks.
Double-sided tapes. Double-sided tape is any pressure-sensitive tape that is coated with adhesive on both sides. [1] It is designed to stick two surfaces together, often in a way which is not visible in the end product, due to it being in between the objects rather than overlaying them. This allows for neater-looking projects and better ...
To represent such a property, each lattice point is colored black or white, [1] and in addition to the usual three-dimensional symmetry operations, there is a so-called "antisymmetry" operation which turns all black lattice points white and all white lattice points black. Thus, the magnetic space groups serve as an extension to the ...
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