Edson's Hygrodeik
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Object Details
- Lowe, Nathaniel M.
- Description
- William Edson, a civil engineer in Boston, designed a "Hygrometrical Index" that, when connected to a common wet and dry bulb hydrometer, "will enable any one, by simple inspection of the instrument, to ascertain the relative humidity and dew-point of the air, also the absolute amount of moisture in the air, without the aid of tables or calculation." In this example, which came from Cornell College, the paper chart is marked "EDSON'S HYGRODEIK MANUFACTURED BY N.M. LOWE, BOSTON." Nathaniel M. Lowe is known to have manufactured Edson's Hygrodeik from 1866 until the early 1890s.
- Ref: William Edson, "Hydrometer," U.S. Patent 48620 (1865), as well as similar patents in England and France.
- William Edson, The Use of Edson's Hygrodeik (1865).
- Location
- Currently not on view
- Credit Line
- Cornell College
- ca 1866-1895
- ID Number
- PH.329004
- catalog number
- 329004
- accession number
- 278100
- Object Name
- psychrometer
- Measurements
- overall: 13 in x 8 1/2 in x 3 1/8 in; 33.02 cm x 21.59 cm x 7.9375 cm
- part: 3/4 in x 8 1/2 in x 3 1/4 in; 1.905 cm x 21.59 cm x 8.255 cm
- overall: 13 in x 8 1/2 in x 3 1/8 in; 33.02 cm x 21.59 cm x 7.9375 cm
- place made
- United States: Massachusetts, Boston
- See more items in
- Medicine and Science: Physical Sciences
- Thermometers and Hygrometers
- Measuring & Mapping
- National Museum of American History
- Record ID
- nmah_1167522
- Metadata Usage (text)
- CC0
- GUID (Link to Original Record)
- http://n2t.net/ark:/65665/ng49ca746ae-0e51-704b-e053-15f76fa0b4fa
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