File:Natural Hygroscope Figure 3.jpg
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| Description |
English: "The simplest Hygroscope of all is ginger snap or spice cake, placed on a ledge, as shown in Fig. 3. This kind is very sensitive to variations of humidity in the air; and when dampness is present, it bends, as indicated by the dotted line, from CB to CB'. During dry weather it returns to its horizontal position. A straw may be fastened to it as an index, and a dial, as above noted, be constructed by experiment." |
| Date | |
| Source | Facts Worth Knowing Selected Mainly from the Scientific American for Household, Workshop, and Farm Embracing Practical and Useful Information for Every Branch of Industry. |
| Author | Sloane, T. O'Conor |
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This work is in the public domain in its country of origin and other countries and areas where the copyright term is the author's life plus 70 years or fewer. This work is in the public domain in the United States because it was published (or registered with the U.S. Copyright Office) before January 1, 1929. |
| This file has been identified as being free of known restrictions under copyright law, including all related and neighboring rights. | |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
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| current | 00:08, 11 September 2017 | | 1,032 × 605 (178 KB) | Garfield7380 (talk | contribs) | User created page with UploadWizard |
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