Author Biography

Art Johnson

Arthur T. Johnson is Professor Emeritus in Bioengineering at the University of Maryland and now a grower of organic fruit on his 49 acre farm. He is the author of four books, 150 peer-reviewed publications, and numerous essays. He has held leadership positions in ten different local, national, and international organizations, and is Fellow of seven professional societies, including IEEE.

Author Articles

It Is Diversity of Experience That Counts

Isaac Asimov, the celebrated science fiction writer, once wrote an essay about creativity [1]. The truly creative mind, he wrote, is one that makes new connections between previously separated concepts. This new connection can only come from the mind of an isolated individual; a new

Going Solar

Since 2008, the solar-generating capacity in the United States has increased by 1,200%, and the Johnson household is now one more. Last spring, we had solar panels installed on the roof of our house. Since then, sunny days have more meaning than before

Genetic Discrimination and Racism

Discrimination seems to be an intrinsic trait inherent in our very being. We, as people, seem to be disposed to discriminate either for or against those who, for one reason or another, are unlike us. This dissimilarity may be recognized in speech, dress, comportment, age, or a host of other

The Obvious Answer

In his book Everything Is Obvious: Once You Know the Answer, Duncan Watts posits that what we value as worthwhile is often determined by chance. He cites the case of the famous painting the Mona Lisa, which is now considered among the world’s masterpieces and hangs in a special place


Hands are awesome. Hands are marvelous in every sense of the word and are as important to us collectively and individually as are our intellects. Hands are the difference between thinking and doing. There may be other creatures in this world that have intelligence, but if they don’t have hands, they cannot act on that intelligence. They cannot make and place things. Without hands, they are trapped in a world that they cannot control

The Fallacy of Genetic Selection

The assumption behind the assertion that genes are either useful and present or harmful and extirpated is that this is a binary situation where genes are either one way or the other. The reality is that there are more than two choices and, more likely, a gradation from highly undesirable to the organism to highly desirable, with the intensity of natural selection graded as well…