Hi all, I got a BA in Physics, and am almost a year out of school. I have noticed whilst perusing graduate school websites that most emphasize that they want letters of recommendation from academic settings. I landed an internship in R&D after school, and I was wondering how inappropriate it would be to request a letter from a senior scientist that I work with. I was sort of hoping that the emphasis on "academic" recommendations would be to weed out people's bosses at totally non-physics type work. What do you think/what have you experienced?