Sinkhole also form in high and dry places in specific locations. Sinkholes that capture drainage can hold it in large limestone caves. These caves may drain into tributaries of larger rivers. The formation of sinkholes involves natural processes of erosion or gradual removal of slightly soluble bedrock (such as limestone) by percolating water, the collapse of a cave roof, or a lowering of the water table. Sinkholes often form through the process of suffosion. For example, groundwater may dissolve the carbonate cement holding the sandstone particles together and then carry away the lax particles, gradually forming a void. Occasionally a sinkhole
A Man Walks Into a Bar... A Man Walks Into a Bar... "A Man Walks Into a Bar..." is the 14th episode in the eighth season, and the 176th overall episode, of the American crime drama television series "NCIS". It first aired on CBS in the United States on February 8, 2011. The episode is written by Gary Glasberg and directed by James Whitmore, Jr., and was seen by 20.35 million viewers. In the episode, a naval commander is found dead in his rack aboard ship, apparently murdered. The NCIS team investigates while having to deal with mandatory psychological evaluations conducted by Dr. Rachel Cranston, who