Anyone know what these sort of things are called?

[T3HZ3N0N]

http://www.youtube.com/watch?feature=player_detailpage&v=KN-SPK4PB3k#t=8s

it seems like a very interesting effect, i do not know the name of it though, anyone care to say the name / find the name out?

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[Joeboy]

Weird Light stuff

Nah I think it's time-lapse light camera stuff, it has a legit name just I can't remember it