כליא ברק = Blitzableiter!!!
http://translate.google.com/translate?hl=de&sl=iw&u=http://he.wikipedia.org/wiki/%D7%91%D7%A8%D7%A7&prev=/search%3Fq%3D%25D7%259B%25D7%259C%25D7%2599%25D7%2590%2B%25D7%2591%25D7%25A8%25D7%25A7%2B%25D7%2591%25D7%2599%25D7%25A9%25D7%25A8%25D7%2590%25D7%259C%26sa%3DX%26hl%3Dde%26gl%3Dde%26biw%3D1366%26bih%3D593
Bilder dazu:
https://www.google.com/search?q=%D7%9B%D7%9C%D7%99%D7%90+%D7%91%D7%A8%D7%A7+%D7%91%D7%99%D7%A9%D7%A8%D7%90%D7%9C&hl=de&gl=de&tbm=isch&source=lnms&sa=X&ei=0UOlUZzGHuqM4gSXu4GYCw&ved=0CAcQ_AUoAQ&biw=1366&bih=593