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The English idiom "rose-colored glasses" or "rose-tinted glasses" refers to perceiving something more positively than it is in reality. The Romans occasionally referred to this phenomenon with the Latin phrase " memoria praeteritorum bonorum ", which translates into English roughly as "memory of good past", or more idiomatically as " good old ...
For example, the color of an object might appear different in the light from the sun versus from an incandescent (tungsten) light bulb. With the incandescent light bulb, the object might appear more orange or "brownish", and dark colors might look even darker. [23] Light and the color of an object may affect how one perceives its positioning.
For example, a PAR16 lamp is approximately 2 inches or 50.8 mm in diameter. [1] The size of rectangular PAR lamps is expressed as the letters REC followed by the reflector's mouth height, the letter "X", and the reflector's mouth width—with both dimensions in millimeters. For example, REC142X200 lamps are 142 high and 200 mm wide. [2] [3]
Skirted (PAR-38) The light bulb commonly used since the early 20th century for general-purpose lighting applications, with a pear-like shape and an Edison screw base, is referred to as an "A-series light bulb." This most common general purpose bulb type would be classed as "A19/E26" or the metric version "A60/E27".
Ambiguous images are important to the field of psychology because they are often research tools used in experiments. [3] There is varying evidence on whether ambiguous images can be represented mentally, [4] but a majority of research has theorized that mental images cannot be ambiguous. [5]
Examples of iridescence include soap bubbles, feathers, butterfly wings and seashell nacre, and minerals such as opal. Pearlescence is a related effect where some or most of the reflected light is white. The term pearlescent is used to describe certain paint finishes, usually in the automotive industry, which actually produce iridescent effects.
As heroin use rose, so did overdose deaths. The statistics are overwhelming. In a study released this past fall examining 28 states, the CDC found that heroin deaths doubled between 2010 and 2012. The CDC reported recently that heroin-related overdose deaths jumped 39 percent nationwide between 2012 and 2013, surging to 8,257.
The first commercially available ESL product was a reflector bulb. Drawbacks include high weight, a slightly larger-than-normal base and – as with all cathode ray tubes – when switched on, a slight delay before illumination begins and a static charge which attracts dust to the bulb face. As of 2016 the cost is higher and claimed efficiency ...