File:Simple thermophone.png
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Size of this preview: 800 × 473 pixels. Other resolutions: 320 × 189 pixels | 640 × 379 pixels | 1,170 × 692 pixels.
Original file (1,170 × 692 pixels, file size: 13 KB, MIME type: image/png)
Summary
| Description |
English: This line drawing depicts a en:Thermophone. It consists of a cylindrical "Fibre Base", two "Terminal Clamps", two "Current Leads", and a "Platinum Strip", given as ".00007 cm. thick". It is Figure 1 in the paper "The Thermophone as a Precision Source of Sound" by H. D. Arnold and I. B. Crandall, published in 1917 in the journal Physical Review. |
| Date | |
| Source | "The Thermophone as a Precision Source of Sound", by H. D. Arnold and I. B. Crandall (1917) |
| Author | H. D. Arnold and I. B. Crandall |
Licensing
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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, 1930.
 Public domain works must be out of copyright in both the United States and in the source country of the work in order to be hosted on the Commons. If the work is not a U.S. work, the file must have an additional copyright tag indicating the copyright status in the source country.
Note: This tag should not be used for sound recordings. |
File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 21:29, 4 April 2024 | | 1,170 × 692 (13 KB) | wikimediacommons>HenryMP02 | Uploaded a work by H. D. Arnold and I. B. Crandall from "The Thermophone as a Precision Source of Sound", by H. D. Arnold and I. B. Crandall (1917) with UploadWizard |
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