magic lantern
magic lantern by tom November 1, 2003
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magic lantern
The magic lantern was an early type of image projector, developed in the 17th century.
It used a concave mirror behind a light source to direct as much of the light as possible through a small rectangular sheet of glass – the magic lantern slide – on which was the painted or photographic image to be projected – and onward into a lens at the front.
Candles or oil lamps were used, producing dim projections. Lighting Improvements took the form of the "Argand lamp" from the 1790s, limelight in the 1820s, electric arc light in the 1860s and finally the incandescent electric lamp.
The magic lantern could project moving images by the use of various types of mechanical slide, which could be over a foot long at times and could contain gears cranks and pulleys. ‘English pattern’ slides were 3.5 by 3.5 inches, ‘French pattern slides’ were 3.25 by 4 inches, and the ‘standard European size’ was 3.25 by 3.25 inches.
The magic lantern played a very important part in Victorian society. Temperance and religious lectures were given. The lantern was also used in education, for demonstration of scientific principles, and to relay news of world events. By this time, images were being transferred to slides by photographic means, and then colored by hand. Lanterns of this time could have up to four projection tubes.
Despite the advent of motion pictures, magic lanterns were still used in schools and institutes; photographic and printed slides were still being manufactured in the 1940s.
It used a concave mirror behind a light source to direct as much of the light as possible through a small rectangular sheet of glass – the magic lantern slide – on which was the painted or photographic image to be projected – and onward into a lens at the front.
Candles or oil lamps were used, producing dim projections. Lighting Improvements took the form of the "Argand lamp" from the 1790s, limelight in the 1820s, electric arc light in the 1860s and finally the incandescent electric lamp.
The magic lantern could project moving images by the use of various types of mechanical slide, which could be over a foot long at times and could contain gears cranks and pulleys. ‘English pattern’ slides were 3.5 by 3.5 inches, ‘French pattern slides’ were 3.25 by 4 inches, and the ‘standard European size’ was 3.25 by 3.25 inches.
The magic lantern played a very important part in Victorian society. Temperance and religious lectures were given. The lantern was also used in education, for demonstration of scientific principles, and to relay news of world events. By this time, images were being transferred to slides by photographic means, and then colored by hand. Lanterns of this time could have up to four projection tubes.
Despite the advent of motion pictures, magic lanterns were still used in schools and institutes; photographic and printed slides were still being manufactured in the 1940s.
magic lantern by cheese tips March 22, 2017
Related Words
Nutshot
It is said of the situation where a person has the bad luck to make contact with his testicles against an undefined surface or object, intentioned or not.
Given the nature of the word, it is more appropriate to design cases where the interaction is made with a moving object, for example, a ball.
Although it is extremely painful for the victim, it tends to be considerably funny to people who witness it.
Given the nature of the word, it is more appropriate to design cases where the interaction is made with a moving object, for example, a ball.
Although it is extremely painful for the victim, it tends to be considerably funny to people who witness it.
Today in the baseball game the pitcher took a nutshot; the baseball hit him in the nuts.
Man, I just watched the funniest nutshot video ever.
Man, I just watched the funniest nutshot video ever.
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Nerd neck
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Serial Monogamist
Someone who jumps from one relationship immediately into another one.
Serial monogamists can not stand to be alone and often suffer from vast commitment and insecurity issues.
Because they jump into relationships immediately after the previous one has ended, serial monogamists typically don't take the time to reflect on their behavior or why their previous relationships failed; thus, they end up making the same relationship mistakes over and over again.
Serial monogamists can not stand to be alone and often suffer from vast commitment and insecurity issues.
Because they jump into relationships immediately after the previous one has ended, serial monogamists typically don't take the time to reflect on their behavior or why their previous relationships failed; thus, they end up making the same relationship mistakes over and over again.
Person 1: Damn, Dustin already has a new girlfriend?! It's only been two weeks since he broke up with his fiance! I think he's a sociopath.
Person 2: No, he's a serial monogamist...
Person 2: No, he's a serial monogamist...
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