![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEitVmAsGLpylGmNRGZiqsEFbaZSr5FRDnouNbOgFmSlU78nV6XgOnmqbCqKt6qwDMUYnY8L4zbeAs6GzzvyJk7Aauyaz5RjfeRULr8ld086v3xQVdjDnhEGDPk0M4moZViOo7cwcbMrZEwP/s320/Organisation_of_flow.jpg)
Example of multiple rotating particles in a closed environment:
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjPhRkGe5BQx4QculBXzntVOYi0uMQlMWATYZX6pqNBARuQOwfYFYHzfPZrEvenNSUVdDThVsJs24nVSPRdVoRrdtA3Gw_kDxJJ6gnReN5Or_Bvwcs63S5pkJBYq5SxwTbMQPhsm_Ju4FXO/s320/Electricity_current.jpg)
Lightning is probably also hollow, just as Lightning Balls. The sample below of a hollow fulgurite (as most fulgurites are) might be proof for such a conclusion.
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiv3L7F7rNDqfFJRDAWFF6rB13CjU-Nj8urCB4SDilMSu2RUYMaYiJlbhXgwziPuFEiIxChTEs3uWeokmr1KqhZ6LBIBSCBgY6yRCGx00Qg6iLdQxgLEU-d4FAzYCff_9Ycwf-ZA9YsOmAQ/s320/fulgurite_holow.gif)
If it isn't hollow, it couldn't penetrate the ground this deep.
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhfcSW2cAr6Kzn92-0zIH6hsVNCaRqfFvv4SRCq9j3shTVP1-uGyAmOY0Y2Fj3jw-JFfqsIpSIu8U0C0IBPEwN0UvPHIJoLY_-wNCHUCA9T2qtUqEDKeOiqNP0-0RGZ4uZsGlLT32rRQObo/s200/fulgurite3.jpg)