can a human break

>>8638473
Find a lightbulb
Squeeze it

No that's impossible
No mere mortal could break an incredibly thin piece of glass with their hands

>>8638476
will do

>>8638478
not the answer i was looking for

>>8638473
approximate with a glass-ball for simplicity, assume you apply pressure from two sides (now defined as the "poles"), assume it will break because of bending stresses in the "equator" region, calculate the max increase in curvature on the equator that glass can handle (this would propably be the difficult part), then you'll know how far you can deflect the "pole" regions, and you'd have to find an equation for an elastic ball spring somewhere, input glass material variables, and that would give the force you'd have to use to achieve that deflection.

That would be in no way accurate, because glass is a shitty material to predict.

>>8638563
thanks mate

>>8638587
This is a rough approximation, and misses a lot of detail shit, like the equator getting stretched, not just bent, and possible higher compound stresses in other places, shear forces, plus an inhomogeneity factor for glass that would be like 0.2 or something due to microcracks or some shit.

To have anything reliable you'd have to test this a lot, or rely on other people having made the tests. The usual equations are not made to handle this case.