Changes

by Richard P. Feynman [http://www.amazon.com/What-Care-Other-People-Think/dp/0553347845]</ref>).

by Richard P. Feynman [http://www.amazon.com/What-Care-Other-People-Think/dp/0553347845]</ref>).

Feynman cut through the red tape and figured out what caused the [[Challenger disaster]].  

Feynman cut through the red tape and figured out what caused the [[Space Shuttle Challenger|Challenger disaster]].  

*I took this stuff that I got out of your seal and I put it in ice water, and I discovered that when you put some pressure on it for a while and then undo it, it doesn't stretch back. It stays the same dimension. In other words, for a few seconds at least and more seconds than that, there is no resilience in this particular material when it is at a temperature of 32 degrees.

*I took this stuff that I got out of your seal and I put it in ice water, and I discovered that when you put some pressure on it for a while and then undo it, it doesn't stretch back. It stays the same dimension. In other words, for a few seconds at least and more seconds than that, there is no resilience in this particular material when it is at a temperature of 32 degrees.

His style of investigating with his own direct methods rather than following the commission schedule put him at odds with Rogers, who once commented, "Feynman is becoming a real pain." During a televised hearing, Feynman famously demonstrated how the O-rings became less resilient and subject to seal failures at ice-cold temperatures by immersing a sample of the material in a glass of ice water.<ref name=NYT_Feynman>{{cite web| url = http://www.nytimes.com/books/97/09/21/reviews/feynman-obit.html?_r=1&oref=slogin |title =  Richard Feynman Dead at 69; Leading Theoretical Physicist|accessdate = 2007-01-28|author = Gleick, James|date = 1988-02-17|work = New York Times}}</ref>

His style of investigating with his own direct methods rather than following the commission schedule put him at odds with Rogers, who once commented, "Feynman is becoming a real pain." During a televised hearing, Feynman famously demonstrated how the O-rings became less resilient and subject to seal failures at ice-cold temperatures by immersing a sample of the material in a glass of ice water.<ref name=NYT_Feynman>{{cite web| url = http://www.nytimes.com/books/97/09/21/reviews/feynman-obit.html?_r=1&oref=slogin |title =  Richard Feynman Dead at 69; Leading Theoretical Physicist|accessdate = 2007-01-28|author = Gleick, James|date = 1988-02-17|work = New York Times}}</ref>