Dr. Adrienne Warshawski was a hyperphysicist from Earth and one of humanity's great scientists. She was compared to Shigematsu Radhakrishnan and Joseph Buckley. (HH12) She invented the gravitational scanner, often called a warshawski in her honor, which gave warning of disturbances in hyperspace gravity waves, considerably increasing safe use of them. In combination with the existing hyper log, this made possible a substantial increase in faster-than-light equivalent speed and greatly increased the size of settlement volume which could remain in reasonably frequent contact.