Basically the title. Considering that train wheels are made of metals and run on metal tracks, how do they prevent wheelslip or loss of traction especially when starting with heavy loads or when going uphill? I’ve heard of sandboxes which can be used to provide more grip by spraying sand onto the track but I’m not sure if they’re still prevalent.
Thanks!
In: 72
Open your dominant hand, place it palm-down on a table or countertop, and run your hand back and forth along the surface. Slides relatively easily, right?
Now, take your other hand and put pressure on your dominant hand. Try to run your hand back and forth on the surface again. Much harder, right?
This is how grip with trains works. Relatively slippery surfaces with little friction build a lot of friction when there’s pressure.
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