Literaturnachweis - Detailanzeige
| Autor/inn/en | Trout, K. P.; Gaston, Charles A. |
|---|---|
| Titel | An Unexpected Heat Engine |
| Quelle | In: Physics Teacher, 50 (2012) 1, S.32-34 (3 Seiten)Infoseite zur Zeitschrift
PDF als Volltext |
| Sprache | englisch |
| Dokumenttyp | gedruckt; online; Zeitschriftenaufsatz |
| ISSN | 0031-921X |
| DOI | 10.1119/1.3670081 |
| Schlagwörter | Photography; Science Activities; Investigations; Engines; Scientific Concepts; Science Education; Light |
| Abstract | It's common knowledge that light can produce chemical and electronic changes (photography is based on those effects); however, many people consider light to have no mechanical effect. Some are familiar with the novelty of a radiometer that spins when placed in the light. Fewer are aware that a cymbal will vibrate audibly if hit by the light from a camera flash. It came to our attention that the bubble in an ultra-sensitive level would move toward a flashlight beamed at the level from one end. Our investigations of this phenomenon show that it is thermal in nature and the effect large enough to be demonstrated in a classroom. With the addition of a small heating wire, the bubble level can be converted into a small heat engine. (As Provided). |
| Anmerkungen | American Association of Physics Teachers. One Physics Ellipse, College Park, MD 20740. Tel: 301-209-3300; Fax: 301-209-0845; e-mail: pubs@aapt.org; Web site: http://scitation.aip.org/tpt |
| Erfasst von | ERIC (Education Resources Information Center), Washington, DC |
| Update | 2017/4/10 |
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