She kept up a constant stream of information for Artemis on her phone, and in return, he sent her the information he dug up about the Fairy People. She is the first to decipher their tongue, using the Ancient Runes texts she stole from Professor Babbling. And at his request, she spent a week searching for any corresponding information about the Fairy People in the Wizarding World. Aside from one text from a not-so-reputable source that cost her more than she would like to remember, there is little parallel between his and her Fairy Folk.
As introverted as the Wizarding World is, surely they must have descended from the same magic source. That no one rediscovered their more advanced cousins in the following centuries speaks greatly to a huge technology gap.
Artemis finds it extremely amusing that the Fairy People, with both magic and science at their fingertips, had chosen "his" way of science over hers. The Stature of Secrecy blocks any advances she could make combining technology and magic in the Wizarding World, not to mention the bigotry and close-mindedness.