It is common to thank Telescope Assistants, secretaries, friends down the hall and by the water cooler, and just about anyone that the authors feel grateful to. If someone proof read your manuscript and caught serious errors, vague sentences and outright bad arithmetic, their names usually deserve to be put here. Above all, if this researcfh was supported by a grant from NASA, the National Science Foundation, or special internal research funds at the institution where you work, mention that fact here. As you see from my Acknowledgments above, I neglected to note that the research was supported by funds from the Office of Naval Research. The problem with this section is that it is usually the absolutely last thing you ever write, and by then you are pretty sick of the paper and anxious to get on with other projects.
Acknowledgments are usually very bland from the standpoint of the reader.
They follow a very simple code. State the grant name and then state the names of the individuals you wish to recognize for whatever reason. But sometimes in the literature you can come across the rare exception that lets you glimpse just for a brief moment, the feelings of the author. These are VERY hard to find. Co-author Chet B. Opal died the end of a long illness during the process of analyzing the data.