Dr. Ralph T. Muehleisen is the Principal Building Scientist and Technical Lead of the Building Energy Decision and Technology Research (BEDTR) program in the Decision and Information Sciences Division of Argonne National Laboratory. He is also an Adjunct Associate Professor at the Illinois Institute of Technology. Ralph completed his undergraduate studies in Electrical and Computer Engineering and Physics at the University of Wisconsin Madison. Ralph received his PhD in Acoustics at Pennsylvania State University and completed postdoctoral fellowships at Penn State in Applied Research and at the Naval Postgraduate School studying Physics. Afterwards, he served on the faculty at the University of Colorado and then the Illinois Institute of Technology. During this time he was also President and Principal Consultant for Muehleisen Consulting. Ralph is here with us today to tell us about his journey through life and science.