In the second perek of sukkah the gemara talks about if one can use an animal for a wall.
I learned with my chevrusah that a wall is different from a palm branch or tarp.
There's an idea that an animal has daas.
It would be kosher by an animal because he could avoid moving.
If someone theoretically wanted to use fans as his wall that swivel and it would be considered non kosher walls?
ElieT
I am assuming that even though the fans are swiveling, at no point is there a gap between them that would render the Mechitzah Pasul (if there is, then it would certainly not be a good Mechitzah even though in a moment the fans would predictably return to their original position where the Mechitzah is valid). If that is the case, then it would seem to be a good Mechitzah even though the fans are moving. There is nothing intrinsically wrong with the Mechitzah moving. We see that from the Gemara (Eruvin 43) that says that a group of people can form a Mechitzah even if they are walking (see Shulchan Aruch OC 362:5). Animals could also theoretically be used as a Mechitzah even if they are moving. They have to be immobilized only out of a concern that they might run off (see Mishnah Berurah OC 362:36). There is no such concern by swiveling fans.
Kol Tuv,
Yonasan Sigler
This is not a Psak Halachah