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A thorough examination of the invention of whiteboards reveals the concept was introduced two decades earlier by mechanical engineer Paul F. Born who installed one in a classroom in Elgin, Ill., in 1937. [1] Born was the head of the district's school board at the time. Door sign to the offices of Magiboards at The Cut in Waterloo, London, in 1966.
In most Asian countries, a special marker is used to fill in an optical answer sheet. Students, likewise, mark answers or other information by darkening circles marked on a pre-printed sheet. Then the sheet is automatically graded by a scanning machine. Many of today's OMR applications involve people filling in specialized forms.
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.
Survey markers, also called survey marks, survey monuments, or geodetic marks, are objects placed to mark key survey points on the Earth's surface. They are used in geodetic and land surveying . A benchmark is a type of survey marker that indicates elevation ( vertical position ).
A permanent marker can also be removed by drawing over it with a dry erase marker on non-porous surfaces such as a whiteboard, [3] as dry erase markers also contain a non-polar solvent. Most dry-erase board cleaner solutions also contain effective organic solvents like 2-butoxyethanol to remove the pigment.
An examination room in a typical doctor's office. Note the examination table, a key feature of almost all such rooms worldwide. A doctor's office in American English, a doctor's surgery in British English, or a doctor's practice, is a medical facility in which one or more medical doctors, usually general practitioners (GP), receive and treat patients.
A bifold door is a unit that has several sections, folding in pairs. Wood is the most common material, and doors may also be metal or glass. Bifolds are most commonly made for closets, but may also be used as units between rooms. Bi-fold doors are essentially now doors that let the outside in.
Overhead projector in operation during a classroom lesson. An overhead projector (often abbreviated to OHP), like a film or slide projector, uses light to project an enlarged image on a screen, allowing the view of a small document or picture to be shared with a large audience.