I’m in no position to dispute either of the two formulas, simply because I haven’t sat down to work it out, and don’t really plan on doing so because it has no intrinsic value for me at the moment.
But I think an important lesson to be learnt here is this: the article caught my eye because it was a topic I was vaguely curious about, hence, my reading of the article. I’m shure the same would go for anyone else. So if we really wanna engage students in education, we should be teaching Math and Physics to students using examples like these, but adapted and modified to make it more relevant and applicable to their lives.