The Sakai Spinner: A Paperclip Top

Autor/in	Corrao, Christian T.
Titel	The Sakai Spinner: A Paperclip Top
Quelle	In: Physics Teacher, 52 (2014) 2, S.122-123 (2 Seiten)Infoseite zur Zeitschrift PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	0031-921X
DOI	10.1119/1.4862126
Schlagwörter	Science Instruction; Physics; Science Activities; Scientific Concepts; College Science; Secondary School Science; High Schools; Qualitative Research; Problem Solving; Algebra; Motion + Suchen Sie Ihr Suchwort? Teaching of science; Science education; Natural sciences Lessons; Naturwissenschaftlicher Unterricht; Physik; High school; Oberschule; Qualitative Forschung; Problemlösen; Bewegungsablauf
Abstract	A challenge: Can you create a stable top from a single paper clip? Several interesting solutions to this problem were provided by Takao Sakai from Japan, the requirement of each being that the center of gravity be located on the vertical y-axis at the center of the top. In the simplest configuration, we see that there exists a single angle ? between the spokes for which this requirement is met (Figs. 1 and 2). While a rigorous calculation of this angle is a nice task for first-year university students, one simple approximation allows for a more high school-ready analysis. Even a qualitative study without any math makes for interesting and fun science. (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