E. Howard Callahan is a retired chemical engineer with a master’s degree in theology. As a chemical engineer, he spent years working in the fields of chemistry and biology. As a Christian, he has spent over 60 years studying the Bible and how it applies so well to our everyday lives. He continued learning physics and chemistry, including organic and inorganic, as he got his bachelor’s degree in chemical engineering at Georgia Tech. Howard’s engineering experience has included research and development (R&D) work that revealed to him how God made the world. Howard ran the chemistry lab for Dr. O.A. Battista, who was an expert in polymer chemistry,
especially in the two polymers that make up probably 80 percent of all living things: cellulose and collagen. Then Howard did R&D work on aloe vera, learning of its many uses in humans and extracting a drug from it. Next was R&D for an anticancer drug-delivery system. Lastly, Howard helped develop and manufacture an artificial scab for very large wounds.