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| Group photo including JP Den Hartog (extreme left) and SP Timoshenko (middle) |
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| Paul Ehrenfest (left) and Stephen Timoshenko in St. Petersburg |
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| James Lighthill, Isaac Elishakoff and Josef Singer at a symposium in 1982 |
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| Professors Charles Babcock (1934-1987), Johann Arbocz (?-2119). Josef Singer (1923-2009) |
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| SBKF project: Andrew Lovejoy (seated, Mark Hilburger (center), Mike Roberts at NASA MSFC in 2009(?) |
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| Mark Hilburger (right) and others before the huge "can" crush at NASA |
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| Mark Hilburger and others before the huge "can" to be crushed by NASA |
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| Mark Hilburger (left) and Mike Roberts, NASA's Shell Buckling Knockdown Factor (SBKF) program (2011) |
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| Rick Young, Mike Nemeth, Mark Hilburger, Marshall Rouse, Norm Knight |
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| Larry Rehfield, Damodar Ambur, Jim Starnes, John Dixon |
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| Jerry Williams, Marvin Rhodes, Jim Starnes, Martin Mikulas |
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| George Johnson and Allen Waters |
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| Nicholas Hoff with former students (Hoff is in the front row, 3rd from left) |
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