David R. Bergman, PhD is Owner and Chief Scientist, Exact Solution Scientific Consulting LLC. He has a PhD in physics with a specialization in General Relativity and High Energy Theory. Among other things, he has developed simulations for testing algorithms used in acoustics, modeled electromagnetic remote sensing devices, and modeled underwater and aero-acoustic propagation, acoustic propagation in transducer layers, and performed mechanical vibrational analysis in bio mechanical systems.