Physical Icicles. Leitz Summitar 50mm.

I could try to convince myself and everybody else that these icicles are somehow different and more special than all the previous Blips of icicles which have populated these pages over the last weeks.  The truth is that they just may be, since they reside atop the Harvard Physics Department...  I really decided to post this image because it makes such a marked contrast with the one (here) which I posted for July 1, 2014 at exactly the same spot.  On that day it was intolerably hot and humid, and there was a malfunction with the A/C equipment on the roof.  The two fellows were up there taking care of it.