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First a special selenium coated, flat metal plate is positively charged. Light stones through a lens then projects an image of the page to be copied onto the charged plate. Whenever the light falls on the selenium plate the plate becomes a conductor and the positive charge is conducted away from the selenium by the metal plate.
What else can I help you with?
Can selenium rectifiers be rebuilt?
Selenium rectifiers, with their metal fins and long lived application in battery chargers and in tube type television sets are not intended to be repaired. Once a rectifier plate becomes damaged or it is burnt (unmistakable stink), the entire assembly should be replaced.
Is there metal involed in plate tectonics?
No.
What is the difference between a kick plate and a mop plate?
A kick plate is a metal or plastic plate installed at the bottom of a door to prevent damage from repeated kicking or impact. A mop plate, on the other hand, is a metal plate installed at the base of a wall to protect it from damage caused by mops and cleaning equipment.
Is a shiny metal plate also said to be mirror?
Yes, A shiny metal plate is also said to be a mirror because reflection occurs when light rays strike a shiny surface or a mirror. By: Aisha Ijaz
What does quadruple plate mean?
Quadruple plate refers to a type of metal plating that involves four layers of a precious metal, typically silver or gold, applied over a base metal. This process enhances durability and resistance to tarnishing, giving the appearance of solid precious metal while being more cost-effective. Quadruple plate items are often considered higher quality than standard plated items due to the increased thickness of the precious metal layer.
How does a leser printer works?
A laser printer is basically a xerographic type photocopier, except instead of a glass plate and light source scanner to paint the image on the selenium drum, it uses a laser to write the image directly on the selenium drum. Everything else is the same.
What is steam made of?
The sole plate (the metal part) is made out of an aluminum alloy often coated in Teflon... Not sure bout the plastic parts :/
What is steam iron made of?
The sole plate (the metal part) is made out of an aluminum alloy often coated in teflon... Not sure bout the plastic parts :/
What does inlaid silver plate mean?
Inlaid silver has two definitions. It is can be used to refer to a metal that is coated with silver. It can also mean a piece of silver that is embedded in another substance.
Can selenium rectifiers be rebuilt?
Selenium rectifiers, with their metal fins and long lived application in battery chargers and in tube type television sets are not intended to be repaired. Once a rectifier plate becomes damaged or it is burnt (unmistakable stink), the entire assembly should be replaced.
What is the component of the coating on the pre-coated TLC plate?
silica or alumina
How does a xeromammogram differ from a mammogram?
A xeromammogram is an image produced by the process of xeromammography, recording an X-ray image on a coated metal plate, using low-energy photon beams, and a long exposure time.
What is the difference between a tintype and ambrotype?
A tintype is a photograph made by creating a direct positive on a thin sheet of metal coated with a dark lacquer or enamel. An ambrotype is a photograph made by creating a positive image on a glass plate coated with a collodion emulsion. The main difference is the base material used - metal for tintypes and glass for ambrotypes.
Why is a silver coated plate kept behind a room heater?
what is a room heater
How do you use ferrotype in a sentence?
Photographic film were not the first material used to record pictures. In the early days, metal plates coated with light sensitive chemicals were loaded into the camera. The first plates were made of copper over coated with silver. Latter sheet metal plates over coated with light senitive chemicals replaced the copper/silver plate. These metal plates were made from sheet metal, the main ingredient was iron. Another word for iron is ferric, Latin for containing iron. Some of the names used for this process was tintype and ferrotype. Latter photographers printed their images on chemically treated paper. These are the photo prints you are familiar with. It was discovered that if the surface of the photo print was made glossy and shinny, the picture appeared sharper and had more contrast. The glossy print therefore become quite popular. The print paper used is over coated with gelatin. This surface when dried is not glossy. To make the print glossy, the wet gelatin print was rolled under pressure onto a highly polished metal plate. The wet gelatin molded itself to the texture of the polished plate. The print was allowed to dry affixed to the plate. When the print dried it was peeled away from the plate. Now the print's surface conformed to the shinny plate and the result was a glossy print. The shinny plate was called a ferrotype plate and the process was called ferrotyping. Modern photo papers are now plastic coated. The coat is a plastic resin thus the paper is called RC for resin coat. This coat is now made glossy or matte or with a texture that looks like cloth. Ferrotyping is no longer required to obtain a gloss.
What kind of nails can be used when building a wall?
8d-10d cement coated if toenailing, 12d-16d cement coated if nailing through a plate.
What is a photo plate?
A photo plate is usually a glass, or metal plate, coated with light sensitive chemicals. Until used it was kept in the dark. It was placed in the camera and exposed to the light of the scene, then removed, and stored in the dark, until it could again be chemically treated to reveal and fix the image on the plate. The glass plates produced images that could later be used to produce a copy of the image printed on paper by shining a light through them. Metal plates produced the image on the plate itself. They could be the end result, or be used in specific printing techniques to make copies in a printing press. The metal and glass plates were replaced by plastic film, and now the film has been replaced with electronic sensors. Even the term photo plate has been replaced with the term photo mask.
