I took this stuff I got out of your [O-ring] 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 believe that has some significance for our problem.
About this quote
- What does it mean?
- Feynman demonstrates that O-ring material loses resilience in cold water, explaining the shuttle failure.
- In plain terms
- Cold makes the O-ring material stiff and unable to seal properly.
- What can you take from it?
- Test materials under real conditions to find failures.
Where it applies
Putting it to work
Questions to consider
- What overlooked detail caused a failure?
- How do you test safety?
Another view
Lab tests may not capture all real-world factors.
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If I could explain it to the average person, I wouldn't have been worth the Nobel Prize.
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