[SunkenCiv]

It would hold for a time — as that old VW bug ad said, “it definitely floats, but not indefinitely”. ;’) It seems like each year there is an explanation for how glaciation happens, but there isn’t any uniformitarian model which works.

“tinsel strength”

s/b?

“tensile strength”?

[Ernest_at_the_Beach]

See this:

tinsel strength

[Ernest_at_the_Beach]

Getting technical...from:

General Specifications of Polypropylene co-polymer resin

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General Specifications -- Explanation of Terms

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• Tinsel Strength at Yield, lbs./sq.in., ASTM-D638: This test determines force taken to break/ tear a polypropylene sample at a speed rat of 2 inches/minute and percentage of elongation at time of yield or break. It took 4000 lbs./sq.in. of force with 10% elongation at time of yield or break.