Walker, Jearl, 1945- Roundabout : the physics of rotation in the everyday World / readings from the Amateur scientists in Scientific American. - New York : W. H. Freeman, 1985. - viii, 70 p. : ill. ; 28 cm. Includes bibliography and index. Open access. ISBN: 0716717255 LCCN: 854358 Subjects--Topical Terms: Motion.