I have 40 years of experience, and specialize in the field of materials science with specific knowledge in the areas of electron microscopy, phase transformations and diffusion. I have published on such topics as phase transformations, electron probe microanalysis and scanning electron microscopy. I have testified on electron microscopy, x-ray microanalysis and materials science. I was a scientist working with lunar samples (Apollo 11,12,14, 16, and 17) with NASA support for a decade.