Complex sentence: Sir Henry Roscoe studied at Heidelberg too, under Robert Bunsen and collaborated with him for many years on research projects and it was Roscoe that promoted the German style of research led teaching which became the role model for all the modern redbrick universities.
Split into simpler sentences: Sir Henry Roscoe also studied at Heidelberg under Robert Bunsen and they collaborated for many years on research projects. Roscoe promoted the German style of research led teaching that became the role model for the redbrick universities.