"gain new knowledge" is a perfectly correct phrase in written English.
You can use it in any context when referring to the acquisition of knowledge. For example, "I enjoyed the class and was able to gain new knowledge about ancient civilizations."
You will likely write papers and examine theoretical positions to gain new knowledge and understanding.
The seminar will also include a Capture the Flag competition, where participants can gain new knowledge about digital forensics, reverse engineering, and cryptography.
Through this program, physicians gain new knowledge about the practice of Emergency Medicine, some of which is reported to change physicians' clinical practices.
Employees may choose to enhance current skills, obtain new skills, or simply gain new knowledge by obtaining college credits while working towards a personal goal.
I could cite several other examples of stepping out of one's typical frames of reference to gain new knowledge and be able to reconsider the questions at hand.
The core is structured through a sequence of carefully constructed design studios where students increasingly gain new knowledge through making, implementing ideas, and experimenting with the problems of architecture: from form to materials, from small to large scale, and from comfort to environment.
Gaining new knowledge and skills is a perpetual requirement.
Gaining new knowledge, having new experiences, being inspired by someone's example these are biological phenomena.
Gaining new knowledge from reading is kind of a given, right?
While scientists have been steadily gaining new knowledge about the brain, they are far from knowing how concepts are represented in it and how we might begin tapping them.
