How Trains Turn...

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ianacole

Well-Known Member
Hopefully not a repost ... came across this and thought it was neat. Never really gave it a lot of thought:

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What a brilliant explanation! Never knew that but it makes perfect sense. Feynman was truly a happy man. :)

Greg
 


that question bugged me the moment i got my first railroad. and the answer was revealed about right then as well by my grand pa :)
he used tapered cone glass to demonstrate the concept
 
Ok that makes me wonder about model trains. Do model trains have the same taper on the wheels or do we rely on the flanges for turning? That could help explain some seemingly mysterious derailing on some models and not on some others.
-Art
 
most of them do, but in our case that friction is negligible anyways.
 
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