Basically, she gives mana, a generic magical energy, to the machine and this makes it move or hover. Giving mana in a particular direction (to the front, to the left, etc) turns, rolls, or banks it, almost like airplane controls.
"No, the mana definitely goes through the moving parts. It starts in these two flywheels. It's like flying a brick if you don't do it that way."
"Not sure. I'm guessing I don't have to put mana into keeping them running, but that's just a guess. We don't have steam engines small enough to test that kind of idea."
"It's worth a try. I think the mana does something else with the insides than just spin the wheels, but that might be bad intuition talking."
"Thanks. Should I go put it somewhere else for now, or is here fine? Actually, I should clean and oil it. Do you have any good lubricant here?"
"Say, how fast are you, running?"
[Elspeth, the Empress knows I'm already ready for any comms she needs, correct?]
[She guessed, but you're mana-limited and phones run on electricity, so she probably won't ask until someone doesn't pick up their cell.]
(Elspeth works over most forms of communication; "cell" expands helpfully for Gren.)
[I already burned a lot of mana this morning and used up all my charge bracelets too but on any other day I can be calling people for at least 12 hours and not run out. I can do magic life support and healing on injured humans, should have mentioned that sooner. Expensive though. Do I still not get to meet Addy?]
[We usually don't have any injured humans around who aren't planning to be turned, but we might be able to think of a way to apply that. The limit on whether you get to meet Addy is about her, not you. Mama's talking to her and Dad is listening in now, but you probably won't get to before you go to Ireland.]
[The worry is that she'll copy me right? Can I talk to her at a range where that won't happen?]
[She'd be hard to contain if she decided she wanted you more than she wanted to keep working with us.]
[It's mildly annoying. Eh. Meanwhile I'm going to make a list of things I kept from other Witches... Short range tracking, enhanced vision and through walls, chain lightning, boosting plant growth, teleporting myself and small objects, healing, magically boosted projectiles, the whisper spell, opening a foot-cube pocket dimension, invisibility...]
[Can you ever combine things you copy if they have enough synergy?]
[Yeah, sometimes. You thinking lie-detector-over-Dwi?]
A twenty-first-century house is like: it isn't locked, Shawn just opens it. There is wood on the floor and paint on the walls, he flips on the lights and there is light in the ceiling. The kitchen's the first thing on the right. He looks into the fridge and reports: "There's like nothing in here, wow," and checks the cupboards and finds "rice and stuff", and then trots into the left room with chairs and a coffee table and a rug, "they didn't even bother to put a TV in here!", up the stairs, "One, two, three bedrooms," back down, "bathroom's back here should I explain all the stuff in it?"
"Looks a little familiar but you probably should explain it, yeah. How do the lights work without fire, anyway?"
"Um, lightbulbs? There's electricity in the walls, and -" He switches off a light, unscrews a bulb. "And it goes in these things and see this little string, it glows when electricity goes through it? And I think the bulb is full of stuff that isn't regular air, that helps?"