1 20510084 20722007 1. (1) Frigyes Karinthy (Lancszemek) 15 , .1. (1) PROOF 1 ( ) ( ( )Stanley Milgram . ( ) 1. (2) - - 160 42 - (median) 5.5 - 6 .1. (3) Jhon Gaure- . . ( ) . ( ) 1000 X10000 Y( )1. (3) 19 19 . (1929 ) : [ (chain)] (1967 )[ ] (1959 ) ( ) . Mit , IBM 10 6 .1. (4) ? 49 1. (5) 1 3 1. (5) But (clue) , ) ? 3 1. (5) . +Slide 1Slide 2Slide 3Slide 4Slide 5Slide 6Slide 7Slide 8Slide 9Slide 10Slide 11Slide 12Slide 13Slide 14Slide 15