[Leaning Right]

Many years ago, I was doing a research project that involved the force of sliding friction between a certain two materials in contact. So I went to various sources to look for the accepted data.

I was surprised to see how much the data varied on the exact same two materials. I suspect that was due to each researcher’s estimate of uncertainty. Different estimates of uncertainty would lead to different results. Perhaps that is what you are facing here.

[doorgunner69]

I was surprised to see how much the data varied on the exact same two materials. I suspect that was due to each researcher’s estimate of uncertainty. Different estimates of uncertainty would lead to different results.

Now you know why mechanical and civil engineers design everything 5X what good enough "should" be.

Thank God electronics are more exact.