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The history of electric light is well documented, [11] and with the developments in lighting technology the profession of lighting developed alongside it. The development of high-efficiency, low-cost fluorescent lamps led to a reliance on electric light and a uniform blanket approach to lighting, but the energy crisis of the 1970s required more design consideration and reinvigorated the use of ...
Good lighting is important in a staircase so users see where they are going and to prevent falls. [6] There is often a window on the wall to let in daylight.In many cases, indoor stairs are placed far inside the building structure, and it is often not easy to get access to a wall on the outside where it would be natural to have a regular window for letting daylight in.
The next major drop in price came about in the 1880s with the introduction of electric lighting in the form of arc lights for large space and street lighting, followed by incandescent light bulb-based utilities for indoor and outdoor lighting. [3] [5] Over time, electric lighting became ubiquitous in developed countries. [6]
Schroeder stairs can be perceived in two ways, depending on whether the viewer considers A or B to be the closer wall. Schroeder stairs (Schröder's stairs) is an optical illusion which is a two-dimensional drawing which may be perceived either as a drawing of a staircase leading from left to right downwards or the same staircase only turned upside down, a classical example of perspective ...
More recently, Gisela Colon, who has been recognized in Artforum as a next generation light and space artist, has created "irregularly shaped wall mounted acrylic orbs... scarab-like objects achieve their iridescence via the play of natural light, yet the sculptures appear to change color as one moves around them, as if lit by multihued bulbs."
Stairs are not suitable for wheelchairs and other vehicles. A stairlift is a mechanical device for lifting wheelchairs up and down stairs. For sufficiently wide stairs, a rail is mounted to the treads of the stairs, or attached to the wall. A chair is attached to the rail and the person on the chair is lifted as the chair moves along the rail.
New York stoops may have been a simple carry-over from the Dutch practice of constructing elevated buildings. [2]It has been well documented that the stoop served the function of keeping people and their homes separated from horse manure, which would accumulate in the streets at high rates.
This allowed the production of chairs, tables, light bulbs, telegraphs, and radios that allowed society to purchase at a reasonable price to add into their home. The rise of the Industrial Revolution played a huge role in the advancement of the living room because due to mass production , decorative items became more available to the middle class.
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