They've got computers, the Internet (Probably a good way for her to learn more, though they don't have reception out here. Try the library.), airplanes, Anakin's seen cars, guns, grenades, nuclear bombs, pictures from the surface of the moon. Tinker powers usually only mess up local tech levels; their creations are not very suited for duplication or mass production unless you're Masamune.
Capes first started appearing in the early 1980s, about thirty years ago. Scion was the first cape, a glowing golden man who does pretty much whatever crosses his inscrutable path, whether that's rescuing kittens from trees or putting out wildfires or driving off Endbringers. By the end of the decade, capes were common knowledge with more appearing all the time. People get powers from trigger events, moments of intense psychological stress. The mechanism is not well understood; it's basically impossible to force or predict a trigger which makes it hard to study except in retrospect, and a lot of capes don't like to talk about their triggers.
Behemoth showed up in 1992, he manipulates energy, usually to set things extremely on fire. Leviathan was '96, a hydrokinetic that also creates a 'water shadow' that echoes his moves. The Simurgh appeared in 2000 and no one even realized her danger until people in the area she was at all started going crazy six months later. One attacks about every three months on a rotating schedule of appearances.
The Keres herself has a pretty solid grounding in most fields, but she's a generalist, not a specialist.