Rebuke Technology question

[Jaçinto]

So I was looking at this because one thing I do, when everything is stacked against me, is be clever and use spells to do massive game changing things. So with Rebuke Technology http://www.d20pfsrd.com/magic/all-spells/r/rebuke-technology What happens if you use it on an unattended object? Size is not listed, and it is not a magical object, so what would the fort save be, if it even gets one? Say, if I cast it on a space ship or a ship's power core/reactor or something, what would happen?

RAW, I can't find a reason why it would not shut down a technological object without a save since it is unattended and non-magical. Just to make a point in case it comes up, a house is not an attended object really just because someone is doing some roofing or just in it at the time, right?

[DM Sothal]

Unattended Non-Magical Items wrote:

Saving Throws - Unattended Non-magical Items

Unattended Non-Magical Items: Non-magical, unattended items never make saving throws. They are considered to have failed their saving throws, so they are always fully affected by spells and other attacks that allow saving throws to resist or negate. An item attended by a character (being grasped, touched, or worn) makes saving throws as the character (that is, using the character's saving throw bonus).

The question whether a space-ship is one technical object or many remains. That the spell doesn't restrict the size makes it handy...

[zainale]

i could see this spell ending badly if used on a space ship or reactor core. because if this person cast the spell on the tech that controls the rate of explosions. you shut that down the ship or reactor goes critical causing it to go up explosively party wiping at least or killing everyone in the area or city.

[Jaçinto]

Well, at least one thing got answered that is kinda silly, which is the rules on attended. If an object being touched counts, then I guess that building I used create wind on, to create a tornado, should have had a fortitude save since someone's feet were on the floor. Also a house gets a reflex save if someone is leaning against the wall and fireball is cast. Kinda bad ruling there, I think, but hey if that is the rule then fine.