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One-way mirrors for upper-level observation deck viewing down into a classroom (University of Wisconsin-Eau Claire) A one-way mirror, also called two-way mirror [1] (or one-way glass, half-silvered mirror, and semi-transparent mirror), is a reciprocal mirror that appears reflective from one side and transparent from the other. The perception of ...
Portable classrooms are colloquially known as bungalows, slum classes, t-shacks, trailers, terrapins, huts, t-buildings, portables, mobiles, or relocatables. In the UK, those built in 1945–1950 were known as HORSA huts after the name of the Government's post-war building programme, "Hutting Operation for the Raising of the School-leaving Age".
Due to population increases in many areas, portable buildings are sometimes brought in to schools to provide relief from overcrowding. Portable classroom buildings often include two classrooms separated by a partition wall and a toilet. Portable buildings can also serve as a portable car garage [3] or a storage unit for larger items. Businesses ...
In schools or religious facilities, room dividers primarily are used to create temporary classrooms for education in large open rooms. [8] [9] Since the rooms were designed originally to be open for other purposes, the most common type of room divider is a portable room divider on casters which can easily be moved from place to place. After ...
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A mirror reflecting the image of a vase A first-surface mirror coated with aluminium and enhanced with dielectric coatings. The angle of the incident light (represented by both the light in the mirror and the shadow behind it) exactly matches the angle of reflection (the reflected light shining on the table). 4.5-metre (15 ft)-tall acoustic mirror near Kilnsea Grange, East Yorkshire, UK, from ...
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.
The primary 30.5 feet (9.3 m) dome weighs 18,000 pounds (8,200 kg) [3] and is elevated above the classroom. A smaller 7 feet (2.1 m) diameter dome housing a heliostat sits atop the classroom roof. The portable telescopes are stored in a dehumidified storage room on the veranda.
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