你会玩吗？看到这个问题，你一定感到好笑：世界上还有不会玩的人吗？是啊，玩是人类的天性，人人都爱玩，人人都会玩。可是你知道吗？玩中有学问，玩中有创造，世界上有一些发明创造就是从玩中孕育出来的，在玩中发现新奇，找出独特，玩出名堂。许多人都知道蒸汽机是瓦特... Can you play it? See this question, you must feel funny: there are people in the world will not play? Yes, play is a human nature, everyone loves to play, everyone will play. But do you know? There is a lot of learning and play in creating. There are some inventions and innovations in the world that are born out of play. They find novelty in play, find out uniqueness and play famous things. Many people know that the steam engine is watt ...