Water in My Head was created in 1996.
Head Above Water was created on 1996-11-07.
Head pressure is created by a column (depth) of water in a container. Pipe is considered a container. Diameter is not a factor. The higher the column of water, the more psi it creates. Multiply column height of water by .434 to get psi of water.
Smoke on the Water - album - was created in 1998.
Head Case was created on 2007-04-18.
Teenage Head - Teenage Head album - was created in 1979.
Head On N was created in 1979.
Butt-head was created in 1992.
Head ööd was created in 2006.
I Hung My Head was created in 1996.
In My Head It Works was created in 2007.
At the Boar's Head was created in 1925.
Head Off was created in 2008.