David is a professional member of the American Association for the Advancement of Science, the Audio Engineering Society, the International Frequency Sensor Association, and is also affiliated with the Institute of Electrical and Electronics Engineers. He was recently invited to join the Mathematics Association of America.
David began his research into the paranormal professionally in 1976, and has investigated cases scientifically from Rhode Island to Key West, Florida. In 1992 David formed a new organization, Scientific Paranormal Investigative Research Information and Technology (S more...
