[SCIENCE] - SPOOKY SPIKE - Rui comes through again. This is a phenomenon I have been curious about for a couple of years now but I had never seen an explanation. Sometimes when I take the ice out of the ice cube tray I'll notice a strange spike sticking up out of one of the cubes - something like a stalacmite. It didn't look like it could have been caused by drips from the ceiling of the freezer. I was stumped. This site says the subject has been covered in "New Scientist" and offeres a couple of possible explanations.