Daniel 2:35 and Ru-ha

I enjoy listening to some of the YouTube podcasts by Ken Schenck. He has a project where he's trying to read the Bible in 10 years; here lately, he's been discussing Daniel 2 and I thought one point from Daniel 2:35 was interesting:

"Then the iron, the clay, the bronze, the silver, and the gold, all together were broken in pieces, and became like the chaff of the summer threshing floors; and the wind carried them away, so that not a trace of them could be found. But the stone that struck the image became a great mountain and filled the whole earth" (ESV).

The passage speaks of "the wind" carrying away fragments of what were formerly emblematic metals, representative of goverments (world powers): Daniel uses the word ruah in this verse. While the word is ambiguous throughout scripture, it seems to denote "wind" here as its Hebrew counterpart does in other parts of the Tanakh (Genesis 8:1; Exodus 10:19; Isaiah 32:2).