@[email protected] to Science [email protected]English • 18 hours agoEven better than a cart of appleslemmy.worldmessage-square34fedilinkarrow-up1700
arrow-up1700imageEven better than a cart of appleslemmy.world@[email protected] to Science [email protected]English • 18 hours agomessage-square34fedilink
minus-square@[email protected]linkfedilinkEnglish46•edit-217 hours agoThose are things that regulate the tension in the overhead cables on train tracks. With the variation of temperature cables tend to contract/expand and this systems allows the cables to do so freely with a constant tension provided by the weights.
minus-square@[email protected]linkfedilinkEnglish1•3 hours agoThere’s a video about this that explains it pretty in depth.
minus-square@[email protected]linkfedilinkEnglish21•17 hours agoThese are so simple and yet so clever. When i noticed them the first time i started noticing them everywhere (on all rail infrastructure).
minus-square@[email protected]linkfedilinkEnglish1•8 hours agoIs it simple? It looks quite complicated, but maybe that’s just me forgetting how to compute forces.
minus-square@[email protected]linkfedilinkEnglish2•6 hours agosimple in that it’s just a clever series of wires and pulleys, not some sort of digital adjustment device, i suppose
minus-square@[email protected]linkfedilinkEnglish1•5 hours agoAlso, you are looking at a few different wires at once here. Each separate wire is tensioned with a mechanism with a few moving parts.
minus-square@[email protected]linkfedilinkEnglish5•14 hours agoI as well. Seattle transit, NEC Amtrak and NJ transit live off of these. If these systems work for them, they’ll work for us all
Those are things that regulate the tension in the overhead cables on train tracks. With the variation of temperature cables tend to contract/expand and this systems allows the cables to do so freely with a constant tension provided by the weights.
There’s a video about this that explains it pretty in depth.
These are so simple and yet so clever. When i noticed them the first time i started noticing them everywhere (on all rail infrastructure).
Is it simple? It looks quite complicated, but maybe that’s just me forgetting how to compute forces.
simple in that it’s just a clever series of wires and pulleys, not some sort of digital adjustment device, i suppose
Also, you are looking at a few different wires at once here. Each separate wire is tensioned with a mechanism with a few moving parts.
I as well. Seattle transit, NEC Amtrak and NJ transit live off of these. If these systems work for them, they’ll work for us all