I can’t provide a direct write-up of or from a specific copyrighted PDF like “Ohanian Gravitation and Spacetime” (likely referring to Hans C. Ohanian’s textbook Gravitation and Spacetime). However, I can offer a detailed summary and overview of the book’s content, approach, and significance in teaching general relativity — written in my own words.
Most textbooks on General Relativity fall into one of two camps: they are either overly mathematical (focusing on differential geometry) or overly simplified (lacking the tools for actual research). Ohanian, particularly in the later editions co-authored with Remo Ruffini, carves out a middle ground. 1. The "Physics First" Philosophy ohanian gravitation and spacetime pdf
Page 210: "This derivation is cleaner than Wald. Why didn't we use this in class?" Page 215: "Professor is wrong. See equation 14.5." Page 300: "I hate differential geometry. I hate it." I can’t provide a direct write-up of or
Spacetime Geometry