Mats Selen, PhD is a professor of high energy physics. He is the creator of the Physics Van outreach program and is known in Champaign-Urbana as the Whys Guy. His research focuses on the decay of the charmed quark. To find out more about his research & outreach, click here. Mats has been volunteering with Ask the Van since its creation in 1998.

Mike Weissman, PhD is a professor of condensed matter physics. His research focuses on noise in condensed matter systems. To find out more about his research, click here. Mike has been volunteering with Ask the Van since 2001.

Lee Holloway, PhD is a physics professor emeritus. He has been volunteering with Ask the Van since 2007.

Tom Junk, PhD is a high energy physicist. His research focuses on the search for the Higgs-boson. To find out more about his research, click here. Tom volunteered with Ask the Van from 2002-2007.

Adam Altman, MS has a graduate degree in electrical engineering from Northwestern University. He currently designs high powered analytic computer applications for companies. Adam answered questions for Ask the Van from 1998-2003.

Dan Kiefer, MS (a.k.a. "Math Dan") is a graduate student in engineering sciences & applied mathematics at Northwestern University. Dan answered questions for Ask the Van from 1999-2003.

Ann Lehman, PhD is a graduate of the department of electrical & computer engineering. Her research focused on photonic crystals. Ann answered questions for Ask the Van from 1999-2003.

Tamara McArdle, DVM is a veterinarian practicing in the Champaign-Urbana area. She has done research in genetic modeling and cancer prevention. Tamara is the author of the Ask the Van website and has answered questions for Ask the Van since 1999.