Sinkhole rain. An analysis of a case of sinkhole formation under a retention pond due to a large amount of rain can be seen in a sinkhole collapse study. Sinkholes have been used for centuries as disposal sites for various forms of waste. A consequence of this is the pollution of groundwater resources, with serious health implications in such areas. The Maya civilization sometimes used sinkholes in the Yucatán Peninsula (known as cenotes) as places to deposit precious items and human sacrifices. When sinkholes are very deep or connected to caves, they may offer challenges for experienced cavers or, when water-filled,
A Void its author an opportunity to display his customary virtuosity as an avant-gardist magician, acrobat and clown." Both of Georges Perec's parents perished in World War II, his father as a soldier and his mother in the Holocaust. He was brought up by his aunt and uncle after surviving the war. Warren Motte interprets the absence of the letter E in the book as a metaphor for Perec's own sense of loss and incompleteness: In French, the phrase "sans e" ("without e") sounds very much like "sans eux" ("without them"), another encrypted reference to loss. A Void A Void, translated from