[[Tiedosto:Water plasma.jpg|right|thumb|Vedestä muodostunut plasmapallo - Pallosalaman demonstrointi laboratoriossa]]
[[Max Planck -instituutti|Max Planck -instituutissa]] on tutkittu korkeajännitteen vedestä muodostamaa plasmaa. Tulokset ovat ilmiöinä sangen pallosalaman kaltaisia.<ref>{{cite web|author=<!-- paging_filter --> |url=http://www.cosmosmagazine.com/node/334 |title='Ball lightning' created in German laboratory | COSMOS magazine |publisher=COSMOS magazine |date=7 June 2006 |accessdate=13 July 2009}}</ref><ref>{{cite web|url=http://www.jstage.jst.go.jp/article/pfr/1/0/039/_pdf |title=Fireball Generation in a Water Discharge |author=Youichi Sakawa |coauthors=Kazuyoshi Sugiyama, Tetsuo Tanabe, and Richard More |work=Plasma and Fusion Research: Rapid Communications |date=12 July 2006 |accessdate=13 July 2009}}</ref>
