Volume 252

Posted on August 4, 2021 Updated on August 4, 2021

Dr. Jesse McTernan, Professor of Engineering, Penn State University

Part 1

Part 2

Jim Schomer, Retired Staff, Penn State University

Part 1

Part 2

Volume 251

Posted on August 4, 2021

Dr. John Cimbala, Professor of Mechanical Engineering, Penn State University

Part 1

Part 2

Daniel Su, President, China Outreach Ministries

Part 1

Part 2

Volume 250

Posted on August 4, 2021

Dr. Billy Moates, Professor, Indiana State University

Dr. Fred Scott, Professor, Cornell University

Part 1

Part 2

Kristin Tasker, Cru Staff, University of Pittsburgh and Carnegie Mellon