🧪 Got a fun physics-y question related to size change stuff, though the scenario would be a little specific so bear with me.
Say you enter a magical portal to another world that is inhabited by giants. There is no guarantee of anything in this other world being the same as in the previous one, aside from the general rules of chemistry and physics and the like (atoms are still atoms, etc) (mostly this just means that it might be some other planet where gravity is not the same).
The question is this: How do you determine whether or not the portal has also shrunk you in addition to teleporting you? As far as you know, this world could be “inhabited by giants” because the portal simply scales down anything that goes through it. Assuming that you can’t just measure how many atoms long something is, what’s some physical property you could measure objectively that is not dependent on scale? One where performing the test while shrunk, even if the equipment is shrunk, produces a different result due to being shrunk.
… Are we going to write a story where someone uses the answer to this question as some JoJo-esque pseudoscience bullshit to test whether or not they’re shrunk? Maybe. But if we did, we’d wait until everybody forgets we ever asked this :3
