iboxagox

iboxagox t1_j46pzo9 wrote

The torque requirement equates to tension on the screw. When you tighten a screw or bolt, the bolt stretches slightly(gets longer). Think of it as a spring. A bolt might have a torque requirement that will create a tension on the bolt called the proof load. Any more torque, and the bolt will permanently stretch and will essentially not be usable. (There are applications where this is actually desired. "Stretch Bolts". ). Think of bending a metal spoon. You can bend it slightly, and it will return to its initial position. Bend it more and it will be permanently bent. (You exceeded the "yield" point of the metal.) Typically, the torque and hence tension will be in the elastic region( the screw will not be permanently stretch ed and can be reused). Anyway, the tension on the bolt clamps the items together and the frictional force created between the two parts is what prevents the parts from moving. More torque, equates to more load which equates to more clamping strength.

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iboxagox OP t1_isa2ie7 wrote

It's not logical, but she's not comfortable navigating transfers etc. There is no direct line in to NYC on the Raritan line. I think her best bet would be parking at a path station and go to Christopher street, but that would require a transfer I believe.

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iboxagox OP t1_is8d6te wrote

That might work. Any reason why you didn't choose the path? Parking in Harrison for example. Or are there any express buses that take advantage of the bus lane or is that not worthwhile? She just told me tonight that her office might be moving to Soho.

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iboxagox OP t1_is80zaq wrote

Aiming for minimal time, maximum consistency in timing. Arrival 9:30 +- an hr. Leaving 4 to 6:30. Currently spouse ( who this is for) left at 6:30pm and has an eta after 8:30pm via car and seems like has to contend with 45 mins of traffic in the evening just to be in the tunnel.

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