Complex sentence: He was born in Porsgrund, Norway and while studying divinity at Copenhagen he became interestd in the pursuit of natural science, and in 1797 he set out to make the tour of the scientific schools of Leipsic, Kiel, and Göttingen.
Split into simpler sentences: He was born in Porsgrund, Norway and while studying divinity at Copenhagen he became interested in the pursuit of natural science. In 1797 he set out to make the tour of the scientific schools of Leipsic, Kiel, and Göttingen.