Why would they make a triangle train
To fit through the triangle-tunnel.
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Jokes aside, the triangle appears to be a photoshopped image.

I’ve seen this picture circulate across the web many years ago, even before the 'rona. I was wondering how far I’d need to scroll until someone pointed out (correctly) that the OP was, in fact, shopped.
my favorite Duke Ellington song, take the A frame
Triangle-Train, Triangle-Train Goes wherever a triangle can…
I’m like 0.03% certain that was a They Might Be Giants B-Side 😉
The Toblerone Express.
Toblerail
Trainblerone.
Traingle
I don’t see how this is Pythagorean, since there none of the corners are right-angle ones.
The middle ones of the two triangles are.
Before the invention of triangles by Pythagoras, all trains were round
The universe is amazing
But the multiverse is… meh.
Agreed
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