You need to listen to these Audio Clips.
https://soundcloud.com/user-554048314/ball-lightening
https://soundcloud.com/user-554048314/ecco-d04-discussion
https://soundcloud.com/user-554048314/norris-peery-2017-02-20-at-1726
https://soundcloud.com/user-554048314/suhas
And my Copenhagen presentation.
Are a good start.