I found this on Instapundit, who found it on Popsci.

A physicist posted this marriage proposal from her boyfriend, also a physicist, on Imgur a couple days ago. The proposal somehow combines features of both advanced academic writing and a note that you might pass in class to your first-grade crush.

A two body interaction is studied over an extended period of time in a variety of locations, and with a multitude of additional bodies. . . . Finally the prospect of continued study is evaluated.

The summary of the findings of the study are presented in Figure 1, and show that the projected happiness is upward with high confidence. Taking these results into account, the author proposes . . . the indefinite continuation of the study.