Is anyone taking Physics 121 for spring? Apparently when I went to get my textbooks, there was this new item that you needed to buy for physics , the H-ITT 100 transmitter. Apparently its like a remote pen that has little buttons with "A,B,C,D, and E" and nothing else. The people at the bookstore said its never been used for physics before and all my friends who've taken physics have never used it either. So what I'm wondering if you guys now what the hell it is and if you have any info on how the physics department is planning to utilize it.