THIS IS DATAPLOT DATA FILE CURVEBA2.DAT SPEED/ROTATION EFFECT ON DEFLECTION OF CURVE BALL (FULL DATA SET) BRIGGS, LYMEN J. (1959). EFFECT OF SPIN AND SPEED ON THE LATERAL DEFLECTION (CURVE) OF A BASEBALL; AND THE MAGNUS EFFECT FOR SMOOTH SPHERES. AMERICAN JOURNAL OF PHYSICS, VOL. 27, #8, NOV., 1959, PP. 589-596. NOTE--BRIGGS IS DIRECTOR EMERITUS OF NBS, AND DIRECTOR OF RESEARCH AT NATIONAL GEOGRAPHIC. NUMBER OF OBSERVATIONS = 7 RESPONSE VARIABLE = LATERAL DEFLECTION (IN INCHES) TOTAL NUMBER OF VARIABLES PER LINE IMAGE = 4 ORDER OF VARIABLES ON A LINE IMAGE-- RESPONSE VARIABLE = LATERAL DEFLECTION IN 60 FEET (IN INCHES) FACTOR 1 = SPIN (2 LEVELS--20 AND 30 REV/SEC) FACTOR 2 = SPEED (4 LEVELS--51.14, 68.18, 85.23, 102.27 MILES/HR) FACTOR 3 = SPIN (DERIVED) (REV/60-FEET) TO READ THIS INTO DATAPLOT-- SKIP 25 READ CURVEBA2.DAT Y X1 X2 X3 DEFLECTION SPIN SPEED #REV INCHES REV/SEC MI/HR REV/60FT -------------------------------------- 10.8 20 51.14 16.0 16.7 30 51.14 24.0 11.7 20 68.18 12.0 17.5 30 68.18 18.0 11.4 20 85.23 9.6 16.5 30 85.23 14.4 11.6 20 102.27 8.0