The Barking Dog has long been a favourite reaction for the Periodic Table of Videos.
We have co-opted it from the University of Nottingham's own very famous Thunder and Lightning lecture.
But, for the first time, we have seen it in a new light.
Filmed at 3,000 frames per second, it is a completely different experience:
In addition to the video above, here is some extra (and alternative) explanation from Pete Licence:
And here is a video about how the video was made: