Hull succeeded just barely in stifling his laughter, but only until Oppenheimer turned to him and remarked that the incident just goes to show you the incompressibility of water . There was no way Hull could contain himself after that . ( Hull was relieved that Groves did not recognize him at the Trinity test several months later . )
32.
It is easily solved by the incompressibility method, as are the coin-weighing problem, the number of covering families and expected properties; for example, at least a fraction of 1-1 / n of all transitive tournaments on n vertices have transitive subtournaments on not more than 1 + 2 \ lceil2 \ log n \ rceil vertices . n is large enough.
