Vietnam Vet (Navy Swift Boats) Expert in ultrasound and piezoelectricity.
I am a polymath with degrees and experience in chemical, electrical, mechanical engineering and computer science and a minor in materials and metallurgy.
And I am published: Ultrasound & Piezoelectric Physics for Engineers, 4rd Edition, "https://www.amazon.com/Ultrasound-Piezoelectric-Physics-Engineers-Applications/dp/B0972J6Y5K/ref=tmm_pap_swatch_0?_encoding=UTF8&coliid=I3QCYUWXT80L75&colid=31EZPNBG8CCHE&qid=&sr="