This sounds awesome. The demonstration took place in a popular human-sexuality course taught by psychology Professor John Michael Bailey. The following quote was taken directly from the online portion of Northwestern's college newspaper:
The optional presentation last Monday, attended by about 120 students, featured a naked non-student woman being repeatedly sexually stimulated to the point of orgasm by the sex toy, referred to as a "fucksaw." The device is essentially a motorized phallus.
So basically 120 people watched some lady get fucked with a fucksaw. For class! Now I guess some people are offended, and some other people are like, that's a weird thing to show in a class presentation, but whatever. And I feel like I really made the wrong decision when I chose what University to attend.