"It Has to Go down a Little, in Order to Go around"--Revisiting Feynman on the Gyroscope

Autor/inn/en	Kostov, Svilen; Hammer, Daniel
Titel	"It Has to Go down a Little, in Order to Go around"--Revisiting Feynman on the Gyroscope
Quelle	In: Physics Teacher, 49 (2011) 4, S.216-219 (4 Seiten)Infoseite zur Zeitschrift PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	0031-921X
DOI	10.1119/1.3566029
Schlagwörter	Introductory Courses; Motion; Equipment; Science Education; Physics; Scientific Concepts; Evaluation Methods; Prediction; Theories; Colleges; Undergraduate Students; Comparative Analysis + Suchen Sie Ihr Suchwort? Einführungskurs; Bewegungsablauf; Naturwissenschaftliche Bildung; Physik; Vorhersage; Theory; Theorie; College; Hochschule; Fachhochschule
Abstract	In this paper we show that with the help of accessible, teaching-quality equipment, some interesting and important details of the motion of a gyroscope, which are typically overlooked in introductory courses, can be measured and compared to theory. We begin by deriving a simple relation between the "dip angle" of a gyroscope released from rest and its "precession velocity". We then describe an experiment that measures these parameters. The data are in excellent agreement with the theoretical prediction. The idea for this project was suggested by the discussion of gyroscopic motion in "The Feynman Lectures on Physics." Feynman's (Fig. 1) conclusion (stated in colloquial language and quoted in the title) is confirmed and, in addition, conservation of angular momentum, which underlies this effect, is quantitatively demonstrated. (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