 On now replacing the eyepiece by a camera, we are in position to photograph the spectrum with the greatest ease. We put in the sensitive plate, either wet or dry, and move to the part we wish to photograph. Having exposed for that part, we move to another...  Light for Students - Page 465by Edwin Edser - 1902 - 579 pagesFull view - About this book
 | English periodicals - 1883 - 528 pages
...sensitive plate, either wet or dry, and move to the part we wish to photograph. Having exposed for that part, we move to another position and expose...refer to the table giving the proper exposure for that portion of the spectrum, and so have a perfect plate. Thus we can photograph the whole spectrum on... | |
 | Thomas Preston - Light - 1890 - 494 pages
...spectrum may be photographed with the greatest ease. " We put in the sensitive plate either wet or dry and move to the part we wish to photograph. Having...refer to the table giving the proper exposure for that portion of the spectrum, and so have a perfect plate. Thus we can photograph the whole spectrum on... | |
 | Henry Augustus Rowland - Dividing engines - 1902 - 758 pages
...the pan we wish to photograph; having exposed for that part, we move to another part, raise the plate to another position and expose once more. We have...refer to the table giving the proper exposure for that portion of the spectrum and so have a perfect plate. Thus we can photograph the whole spectrum on one... | |
 | William Marshall Watts - Spectrum analysis - 1904 - 414 pages
...feet, and the photographic plates are 19 inches long and 2 inches wide. Professor Rowland says : " We put in the sensitive plate and move to the part...refer to the table giving the proper exposure for that portion of the spectrum, and so have a perfect plate. Thus we can photograph the whole spectrum on... | |
 | Physics - 1883 - 526 pages
...sensitive plate, either wet or dry, and move to the part we wish to photograph. Having exposed for that part, we move to another position and expose...refer to the table giving the proper exposure for that portion of the spectrum, and so have a perfect plate. Thus we can photograph the whole spectrum on... | |
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