Arbab Ibrahim Arbab is a professor of physics at the University of Khartoum in Sudan and a visiting professor at Qassim University in Saudi Arabia. He visited me at Towson University in the summer of 2018 to discuss his interests in theoretical topics including the use of quaternions to reformulate existing physical laws in a more unified way, with possibly testable applications to such diverse phenomena as Josephson junctions, exoplanetary spins and galactic rotation curves.