I have a question about the KJRH building.  While visiting the Old School Bagel Cafe, we noticed the &quot;fins&quot; on the south side of the KJRH building.  They also look like they can move, like maybe encasing the building in an armadillo like casing.  <br /><br />So, the questions:  <br />1) what are the fins for <br />2) do they rotate to encase the building <br />3) if they move, do they ever feel the need to move them?