小明一早就拉着妈妈的手,闹着要去浙江省科技馆参观,听说科技馆有很多好玩的展品,一定要尽早去抢个先,好好玩个够。在科普辅导员的带领下,小明和妈妈一件一件地玩了起来,还不时地向我们辅导员提出一些小问题。当他走到动量机这件展品跟前时,看到一位小朋友玩得可开心了。只见那个小朋友站在圆台上,双手紧握把手,一只脚往后蹬,身子随着圆台旋转,当他抬起并伸直一条腿,转速减慢了; Xiao Ming has long pulled her mother’s hand, downtown want to go to Zhejiang Science and Technology Museum to visit, I heard a lot of fun Museum of Science and Technology exhibits, be sure to grab a first, to play well enough. Under the guidance of popular science counselors, Xiao Ming and his mother played one by one and from time to time asked some small questions from our counselors. When he walked to the momentum machine in front of this exhibit, saw a kid playing happily. I saw that child standing on the round table, his hands clutching his hand, one foot back pedal, with the rotary table body rotation, when he lifted and straightened one leg, speed slowed down;