Academic/Engineering: Newtonian physics (statics, dynamics) or Galilean physics (coordinate transformation, orbital mechanics), nuclear physics (beta, gamma, x-ray, neutron radiation and concepts of radioactive decay), radiation transport modeling. With objectivity and integrity at our core, we lead federally funded research and development centers for U.S. government agencies - collaborating with industry and academia to deliver integrated, high-impact solutions that advance our nation's health, security, and prosperity.