Philips 4' T8 LED retrofit lamps

[CoveAxe]

The largest dimensions of any object that can be moved around the world with (relative) ease are just under railcar size. etc etc etc...

Yeah, this is actually a myth, at least in the way it's portrayed.

 

[idleprocess]

Yeah, this is actually a myth, at least in the way it's portrayed.

That covers the oft-told story of railroad guage being precisely replicated from chariot ruts, not the general width (and to a lesser extent, height) of railroad cars being analogous to clearances for wagons or chariots from centuries past.