Interested in cosmology, astrophysics but lately addressing fundamental problems in physics employing Quaternions. Physical laws are found to be unified when written in terms of quaternions. Within this framework, electromagnetism allows a longitudinal electric wave of Tesla type besides the transverse wave.
Schrodinger, Dirac and Klein -Gordon equations are unified in a single equation. It treats matter waves like charge waves where two fields represent the matter fields as in Maxwell theory.