HootinNHollerin@lemmy.world to Science Memes@mander.xyzEnglish · 3 months agoEven better than a cart of appleslemmy.worldimagemessage-square41fedilinkarrow-up1865arrow-down112
arrow-up1853arrow-down1imageEven better than a cart of appleslemmy.worldHootinNHollerin@lemmy.world to Science Memes@mander.xyzEnglish · 3 months agomessage-square41fedilink
minus-squareLegoBrickOnFire@lemmy.worldlinkfedilinkEnglisharrow-up51arrow-down1·edit-23 months 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-squareverstralinkfedilinkEnglisharrow-up22·3 months 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-squareRubberElectrons@lemmy.worldlinkfedilinkEnglisharrow-up5·3 months 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
minus-squaresomeacnt_@lemmy.worldlinkfedilinkEnglisharrow-up1·3 months agoIs it simple? It looks quite complicated, but maybe that’s just me forgetting how to compute forces.
minus-squareSwedneck@discuss.tchncs.delinkfedilinkEnglisharrow-up3·3 months agosimple in that it’s just a clever series of wires and pulleys, not some sort of digital adjustment device, i suppose
minus-squareverstralinkfedilinkEnglisharrow-up1·3 months 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-squaredrosophila@lemmy.blahaj.zonelinkfedilinkEnglisharrow-up2·3 months agoThere’s a video about this that explains it pretty in depth.
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.
These are so simple and yet so clever. When i noticed them the first time i started noticing them everywhere (on all rail infrastructure).
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
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.
There’s a video about this that explains it pretty in depth.