The accompanying picture demonstrates very clearly, that for electric discharges, even as to their mechanical effects, is the creation of circles something completely natural and easy, and no one have to be surprised of it.
Larawan na nagpapakita napaka kasama Malinaw, Na para sa electric discharges, kahit na ng mga ito ang kanilang mechanical effects, sa paglikha ng mga lupon ng isang bagay na ganap na natural at madaling, at mayroon na magulat nito.