R. J. E. Clausius was born on Jan. 2, 1822, in Köslin, Pomerania. He was the sixth of 18 children of the councilor of the Royal Government School Board C. G. Clausius. He studied in his father’s schools throughout his childhood and graduated from the University of Berlin. He majored in Mathematics, Physics and History. He was famously an extremely sincere student and was well known for his ability to apply mathematical concepts to solve all problems. He got his doctorate on optical effects in the Earth’s atmosphere and explained the reason for the sky’s colour during sunset and sunrise.