Microphotography
Microphotographs are photographs shrunk to microscopic scale. Microphotography is the art of making such images. Applications of microphotography include espionage such as in the Hollow Nickel Case, where they are known as microfilm. Using the daguerreotype process, John Benjamin Dancer was one of the first to produce microphotographs, in 1839. He achieved a reduction ratio of 160:1. Dancer perfected his reduction procedures with Frederick Scott Archer’s wet collodion process, developed in 1850–51, but he dismissed his decades-long work on microphotographs as a personal hobby, and did not document his procedures. The idea that microphotography could be no more than a …
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ULCC: Uniform Law Conference of Canada · 23 June 2003 English
The benefits resulting from the work of the State Com- missioners in the United States suggested the advisability of similar action being taken in Canada, and on the recommenda~ tion …
indicated above: "The preservation of records by microphotography copies as a general system seems to be open …
ULCC: Uniform Law Conference of Canada · 13 June 2003 English
4 COMMISSIONERS AND REPRESENTATIVES OF THE PROVINCES AND OF THE DOMINION OF CANADA FOR THE PURPOSE OF PRO- MOTING UNIFORMITY OF LEGISLATION Alberta: R. [...] The benefits resulting from the …
has, however, arisen with the development of microphotography by means Of which there can be recorded on …
ULCC: Uniform Law Conference of Canada · 13 June 2003 English
Proceedings of the 22nd Annual Uniform Law Conference of Canada 1939 PROCEEDINGS OF THE TWENTY-SECOND ANNUAL MEETING OF THE CoNFERENCE oF CoMMISSIONERs ON UNIFORMITY OF LEGISLATION IN CANADA HELD AT …
has, however, arisen with the development of microphotography by means Of which there can be recorded on …
SFMN: Sustainable Forest Management Network · 28 August 2001 English
Although researchers were aware of the significance of PMEICF to the transport and fate of sediments and contaminants in the aquatic ecosystem; they have had difficulty including the effect of …
ultrafiltration fractionation of PME. The video microphotography system was used for on-line monitoring of … Images of a and b from SEM and C from on- line microphotography system 5 100 90 80 70 60 50 40 30 20 10 0 … of Geology On-line Floc Size Distribution Microphotography system 9 Table 3: Identification of floc forming … measurement of floc size distributions by the video microphotography system. 13 …
