baseball

Μια ωραιότατη εξήγηση εδώ από τον Αντώνη Πανούτσο. Και ο ορισμός: A knuckleball (or knuckler for short) is a baseball pitch with an erratic, unpredictable motion. The pitch is thrown so as to minimize the spin of the ball in flight. This causes vortices over the stitched seams of the baseball...