Frozen greenhouse beauty  Written by Doug Oster on .   Every
once and a while the windows of my unheated greenhouse freeze
with beautiful designs. The weather has to be just right for
this to happen. The windows thaw a bit during the day then when
they freeze ice forms in these intricate patterns. Believe it or
not, these are color pictures, but the way the light hits the
glass they take on the appearance of black and white etchings,
at least that's what they look like to me. Nature is amazing,
isn't it?     Join the conversation: