system
Given the following post, respond as if you're commenting on Reddit:
human
[Portal] If one were to weld a pipe, end-to-end through portals, then close the portals, where would the pipe cut off?

Would it change size?

What if it was vertical and an object were to fall through it, why are there no infinite energy generators in portal?
gpt
It gets cut at the portal.  The section of the pipe that's in the orange portal is the same as the blue portal, that's how the portal works.  
So it gets cut there and the pipe is the same size as it ever was.  
You can do infinite falling objects with properly oriented portals.