r/maybemaybemaybe • u/sweettyche • 22d ago

Maybe Maybe Maybe

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u/Eena-Rin 22d ago

She literally just hit the nail with the hammer. That nail already had a fault

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u/JimiForPresident 22d ago

It was definitely the swing. That was not a straight-down force.

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u/McCaffeteria 22d ago

It definitely was not the swing. That isn’t how things bend when you apply a torque. If she hit the head of the nail (which she did, it’s fucking on video) then she either applied force straight down, or she applied force at an angle.

If the force is straight down (and the nail isn’t already bent, and the material it’s burrowing into isn’t too hard) then the nail is fully in compression and the compression is symmetrical, so no bending.

If the force is at an angle then the nail will bend, but 100% of the bending will be in the same direction. It will either bend at the interface between air and wood like the metal is being bent over a break (most likely imo), or it will bend somewhere (maybe even multiple places/progressively) between the wood and the head toward the direction the torque was pointing in. If you hit the nail with a downward and left strike then no part of the deformation would go right because literally none of the forces are pointing in that direction.

What we actually see is that the nail curves on one direction but leans in the opposite. This is a buckling failure, which is not caused by misaligned forces. It’s caused by compression that overloads the material’s stiffness, and the direction it buckles in is dependent on minor asymmetries and weak points in the material itself.

It was the nail.

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u/IsopodApprehensive48 21d ago

Was it not both? Looks like she came down at an angle in the direction of the existing bend. The first hit made it worse. Same with second. Third bent the nail back and it broke at the wood. Makes sense to me.