Most scientific methods arise from a systematic knowledge derived from observation and experimentation.Taken from the book "Exploring Biology in the Laboritory"written by Shree R. Singh and Karyn D....
Simply put, knowledge derived from faith is commonly called belief. In many scientific models, such knowledge is often called axiomatic, given, or tautological.
You can use both. You can use "knowledge of" when you are saying that you have the knowledge of something specific. You can use "knowledge in" when you're talking about a vast area/field of...