HiddenLayer555@lemmy.ml to Videos@lemmy.worldEnglish · edit-23 个月前Why don't railroads need expansion joints?www.youtube.comexternal-linkmessage-square38fedilinkarrow-up1111arrow-down17file-text
arrow-up1104arrow-down1external-linkWhy don't railroads need expansion joints?www.youtube.comHiddenLayer555@lemmy.ml to Videos@lemmy.worldEnglish · edit-23 个月前message-square38fedilinkfile-text
Practical Engineering’s video on this is also really good: https://www.youtube.com/watch?v=zqmOSMAtadc
minus-squareflyingSock@feddit.orglinkfedilinkEnglisharrow-up4·3 个月前Nowadays there are no thermal expansion joints, the rails are welded. Any thunk thunk left is at switches.
Nowadays there are no thermal expansion joints, the rails are welded. Any thunk thunk left is at switches.