俄罗斯莫斯科热力工程学研究所主管工程师伊格纳托夫开发出了一种新型避雷针。这种避雷针能防止球状闪电的袭击。这项发明已获得专利。球状闪电形似火球 ,体积比足球略小 ,颜色有白、绿、黄、橙之分。它能随气流在低空飘飞 ,从烟囱、窗户、门缝钻入屋内。它有时会一声不响地消 Ignatov, a leading engineer at the Moscow Institute of Thermal Engineering, Moscow, has developed a new type of lightning rod. This lightning rod to prevent the ball lightning attack. This invention has been patented. Ball shaped lightning fireball, slightly smaller than the size of the football, the color white, green, yellow, orange points. It can drift with the air at low altitude, from the chimney, windows, door cracks into the house. It sometimes disappears silently