This boundary is known as the Bullen discontinuity, or sometimes as the Lehmann discontinuity. A few years later, in 1940, it was hypothesized that this inner core was made of solid iron; its rigidity was confirmed in 1971. The outer core was determined to be liquid from observations showing that compressional waves pass through it, but elastic shear waves do not â or do so only very weakly.
Flannery Literary is a Chicago area literary agency representing writers of books for children and young adults because the most interesting, well-written, and time-honored books are written with young people in mind.
Flannery OâConnor (1925-1964) was accepted to the University of Iowa Writers' Workshop in 1945 and obtained her Master of Fine Arts degree in 1947. She was then offered a post-doctoral fellowship at the Workshop and spent another year in Iowa City.âConnorâs life in Iowa City is narrated in detail in the recently published biography Flannery: A Life of Flannery O'Connor by Brad Gooch. Gooch was able to paint O'Connorâs character and state-of-mind with a few fine strokes: However, according to one of her roommates,