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There is the point that this restriction is accomplished through the use of hardware . Other elements from different namespaces MAY be present for the purposes of extensibility . There 's no way I can go around springing for a spare set of hardware so I can try to work around anything I do n't like about the first one . In preparation for the full-scale attack that may be coming , Israel on Wednesday blew up three bridges ( to prevent the removal of its kidnapped soldier ) and a Palestinian power plant , leaving much of the Gaza Strip without electricity and water in the full heat of summer . A well built Unix distrobution contains hundreds of small utilities that can be useful in shell script for doing varous tasks , accessing information , or controling various pieces of hardware . The piece of hardware effectively acts like a little tiny annex of black-box code . To determine whether this change could be related to soil moisture , the pattern of precipitation along the groundtrack for 5 days preceding the overpass and on the day of the overpass was studied . Such a failure , they claim , might scatter the 72 pounds of plutonium on board throughout the atmosphere and water of Earth , bringing more frequent cases of cancer worldwide .