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123kid
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what are photographic plates ? why are they used radioactivity experiments?
123kid said:what are photographic plates ?
123kid said:in every experiment of radioactivity
"In the discovery of radioactivity. Henry becquerel placed some uranium with photographic plates"jtbell said:Which experiments are these (at least some examples) and when (approximately) were they performed? What other technologies are you thinking of, as alternatives to photographic plates?
123kid said:"In the discovery of radioactivity. Henry becquerel placed some uranium with photographic plates"
123kid said:what are photographic plates ? why are they used radioactivity experiments?
I tried Google (which is always a good idea)_. This link came up in the top few of a very long result list for "Radiation Detectors History". Read it and you can be an 'expert' on the history of such things.123kid said:what are photographic plates ? why are they used radioactivity experiments?
Photographic plates are flat, rectangular pieces of glass or plastic coated with a light-sensitive emulsion. They were used to record images in photography before the invention of digital cameras. They were commonly used in scientific research and astronomy to capture images of stars and galaxies.
Photographic plates work by capturing light that enters the camera through a lens and exposing the light-sensitive emulsion on the plate. The exposure time determines the amount of light that is recorded on the plate, creating a visible image. The plate is then developed using chemicals to make the image permanent.
No, photographic plates are no longer commonly used in photography or scientific research. They have been largely replaced by digital cameras and imaging technologies that offer more efficient and accurate ways of capturing images.
Photographic plates were able to capture very faint objects that were not detectable with the technology available at the time. They also had a larger light-sensitive surface area, allowing for higher resolution images. Additionally, photographic plates were more affordable than early digital cameras.
While photographic plates are no longer commonly used, they are still used in some niche applications, such as in art conservation, where they are used to capture images of paintings and other artwork to document their condition and restoration processes. They are also used in some educational settings to teach students about the history of photography and scientific research.