目前,市场上的普通蜡烛,在燃烧过程中常常“泪流满面”,既不卫生,又浪费材料。有没有一种简便的方法可克服这些弊病?答案是肯定的。既然有“泪”(烛油),首先就要把“泪”减少到最低限度;“泪”少就可以节省材料(石蜡)并使其得到充分利用。陈晨同学通过观察,从下雨中受到启发,利用小瓦集聚雨水的道理,经过多次实验,把普通蜡烛断面的圆形 At present, ordinary candles on the market often “burst into tears” during the burning process, which is neither sanitary nor wasted materials. Is there a simple way to overcome these ills? The answer is yes. Since there is “tears” (candle oil), we must first reduce the “tear” to a minimum; “tears” less material can be saved (paraffin) and make full use of it. Chen Chen students through observation, inspired by the rain, the use of small watts gather rain water truth, after many experiments, the general circular cross-section of the candle