The title, I don't know whether it's correct or not, but I came across a video in youtube, http://youtu.be/_PkgQQqpH2M.
The author of video used the title and hence I used the same..
The video doesn't seems to be fake because of the "noise" in water flow. But what kind of freq. and why it makes the water flow in this pattern??
EDIT1: The title might create some confusion with the nature of the flow. The water drops are not stagnant. The water is moving/flowing. but the flow is sort of like standing wave pattern. There are nodes and anti-nodes in the flow. drop which seems stationary are nodes. But as such water seems to flow in and out of the nodal region.