Editing Ball lightning (section)

=== Home microwave oven experiments ===
Many modern experiments involve using a [[microwave oven]] to produce small rising glowing balls, often referred to as ''plasma balls''.
Generally, the experiments are conducted by placing a lit or recently extinguished match or other small object in a microwave oven. The burnt portion of the object flares up into a large ball of fire, while "plasma balls" float near the oven chamber ceiling. Some experiments describe covering the match with an inverted glass jar, which contains both the flame and the balls so that they do not damage the chamber walls.<ref>{{cite web|url=http://jlnlabs.online.fr/plasma/gmr/index.htm |title=How to make a Stable Plasmoid ( Ball Lightning ) with the GMR (Graphite Microwave Resonator) by Jean-Louis Naudin |publisher=Jlnlabs.online.fr |date=22 December 2005 |access-date=13 July 2009| archive-url= https://web.archive.org/web/20090626155549/http://jlnlabs.online.fr/plasma/gmr/index.htm| archive-date= 26 June 2009 <!--DASHBot-->|url-status = live}}</ref> (A glass jar, however, eventually explodes rather than simply causing charred paint or melting metal, as happens to the inside of a microwave.){{cn|date=May 2023}} Experiments by [[Eli Jerby]] and Vladimir Dikhtyar in Israel revealed that microwave plasma balls are made up of [[nanoparticle]]s with an average radius of {{convert|25|nm|in|abbr=in|lk=in}}. The team demonstrated the phenomenon with copper, salts, water and carbon.<ref>{{cite web|url=http://www.scienceinschool.org/2009/issue12/fireballs|title=Creating the 4th state of matter with microwaves by Halina Stanley|publisher=scienceinschool.org|date=13 August 2009 |access-date=6 October 2009| archive-url= https://web.archive.org/web/20091031100909/http://www.scienceinschool.org/2009/issue12/fireballs| archive-date= 31 October 2009 <!--DASHBot-->|url-status = live}}</ref>