| 摘要 |
PURPOSE: A numerical experiment device is provided to offer a Magnus effect through numerical weight change of a laboratory device scale according to rotational speed and rotational direction of a ball, and flow speed of air. CONSTITUTION: A bearing column(108) supports a circular rod(104) and maintains the horizontality of the circular rod without vibration when rotating a ball(103). A battery(109) supplies power to a motor control board(110) and rotates a motor. The motor control board controls rotational direction and rotational speed of the ball. A power switch(110a) turns on and off the power of the motor control board. A directional switch(110b) controls the rotational direction of the ball. A speed switch(110c) controls the rotational speed of the ball at low speed, medium speed, and high speed. A bottom plate(111) holds up a motor post(107) and a bearing post. |
