Sinkhole urban areas due to water main breaks or sewer collapses when old pipes give way. They can also occur from the overpumping and extraction of groundwater and subsurface fluids. Sinkholes can also form when natural water-drainage patterns are changed and new water-diversion systems are developed. Some sinkholes form when the land surface is changed, such as when industrial and runoff-storage ponds are created; the substantial weight of the new material can trigger a collapse of the roof of an existing void or cavity in the subsurface, resulting in development of a sinkhole. Sinkholes tend to occur in karst landscapes. Karst
A Matter of Minutes of a voice which seems to be commanding the workers, but then turn once the voice commands the workers to capture the Wrights. Confused and frightened, the couple run into a back alley and enter a void of white space. They discover a man in yellow who helps them out of the void and explains to them that he is the supervisor of the maintenance of time. They have somehow slipped into a loophole and while they should be in an earlier time - 9:33 a.m. - for some reason they have hopped over into 11:37 a.m. Showing them exactly