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.
Susan Flannery was born on July 31, 1939 in Jersey City, New Jersey, USA. She is an actress and director, known for The Bold and the Beautiful (1987), The Towering Inferno (1974) and The Gumball Rally (1976).See full bio Â».in Jersey City, New Jersey, USA.usan Flannery was born on July 31, 1939 in Jersey City, New Jersey, USA. She is an actress and director, known for The Bold and the Beautiful (1987), The Towering Inferno (1974) and The Gumball Rally (1976). See full bio Â». in Jersey City, New Jersey, USA.