Cam is dipping a grilled cheese sandwich into a bowl of tomato soup when he feels the summons. He goes ahead and grabs it. Doesn't even drop the sandwich.
"Do you want an impromptu electrical engineering lesson, because I can give you one of those but it will take a few hours to get from zero to video games."
"Right. Electrical engineering it is. Are you a note-taking type?" Cam asks, pulling out his computer.
Cam proceeds to give her a historically chronological overview of electricity and neighboring topics that seem worth summarizing (interaction with magnetism, the internal combustion engine, basic computing).
Sable is fascinated. And asks insightful questions despite her unfamiliarity with the topic.
Which he answers! He does not know everything off the top of his head, but his computer is very well organized.
"Not for me. Brains don't actually have nerves in them, and I could just make the insert where it needed to be without going through my scalp, and daeva quick-heal from anything that manages to scratch us. But you should have a different model of computer, assuming you want one."
"Lots. Do you expect to have informed opinions if I show you a catalog or should I just pick something?"
"I think I'll leave it for now," she decides. "Do you want to try on some wings? If you take yours off I can spend the rest of today figuring out how to craft them into a local set, and you can try on one of my spare pairs in the meantime."
"Yeah, sure. I'll nip up to the shower room and get them off." He nips up to the shower room. He comes back with an unmarked, slightly damp back, and a pair of gore-tipped wings.
"These were my favourites until I got the ones I'm wearing."
When held, the tiny wings assert that they can be expanded to their full size at his leisure.
Cam takes them and peers at them and then expands them. "Very thematic, I like. Er, how do I...?"
"You just sort of... put them on. If you hold the end near your back, it pulls itself toward where it's supposed to attach."
The wings tug themselves toward the correct position and orientation, and then vwoop onto his back and seal themselves down. A moment later, they start providing sensory feedback. The helpful Terrarian sense of what-to-do-with-this-object tells him how they are meant to move in order to accomplish various maneuvers. The fire-feathers are soft to the touch, and warm but not hot. Little harmless flames stream from their edges when they move through the air.
"These are... interesting. They have a surprising amount of tacitility. Are they - damageable? Advantage of my usual kind is that they count as part of my body and get the same indestructibility, and I'm not sure these can."
"They can be injured the same as anything, but they're pretty tough... how would you check if they're properly part of your body or not? They look that way to me, but I'm not sure I'd be able to tell the difference."
"I can try to declare them part of my body, but that doesn't give feedback all by itself, we'd have to see if they can be damaged more than, like, cosmetically - and similarly if they heal from that. If you can pull a feather out and I'm not trying to let you, they don't count, but would that break them?"