Void coefficient reactor is reduced. In boiling-water reactors with large negative void coefficients, a sudden pressure rise (caused, for example, by unplanned closure of a steamline valve) will result in a sudden decrease in void content: the increased pressure will cause some of the steam bubbles to condense ("collapse"); and the thermal output will possibly increase until it is terminated by safety systems, by increased void formation due to the higher power, or, possibly, by system or component failures that relieve pressure, causing void content to increase and power to decrease. Boiling water reactors are all designed (and required) to handle this
Akhayat sinkhole site presently there is no touristic activity. But Silifke governor said that the site will be opened to tourism. Akhayat sinkhole Akhayat (also known as Aşağı Dünya Obruğu) is a sinkhole in Mersin Province, Turkey. The Akhayat Sinkhole is located in a rural area of the Silifke district, to the north of Atayurt town. Its visitors (if there are any) are often from Mersin, and to get to the sinkhole site they follow the Turkish state highway . As for tourism nowadays, it isn't a particularly popular sight, as there is hardly any touristic activity apart from people driving past