Natural World & Laws

Pressured and Sustained by Air

By Jim Virkler / May 19, 2017

Published 5-19-2017 Air pressure is a subject of fascination apart from its relationship to the complex phenomenon of Earth’s weather system. Our planet manifests multiple physical systems worthy of investigation—systems…

A World Working Well

By Jim Virkler / May 4, 2017

Published 5-4-2017 Our current focus on the wonders of air pressure directs us to some deeper questions. It is appropriate to backtrack somewhat to discuss a few questions about constantly…

Forces of Air Pressure

By Jim Virkler / April 30, 2017

Published 4-30-2017 During my tenure as an earth science teacher weather was one of my favorite units of study. I hoped it would become a student favorite as well. Many…

Into Thin Air

By Jim Virkler / April 28, 2017

Published 4-28-2017 The popular idiom “Vanish into thin air” has acquired meaning in our modern experience. It refers to a mysterious disappearance of something which is no longer visible but…

Old- or New-Fashioned Winter?

By Jim Virkler / March 5, 2017

Published 3-5-2017 Climate change is really a metaphor for global warming in today’s conversation. The warming of our planet is perceived by many citizens as undesirable. Many less informed citizens…

Consciousness in Animals

By Jim Virkler / February 21, 2017

Published 2-21-2017 Human consciousness is on a higher plane than consciousness in animals. Nevertheless, biologists acknowledge that mammals, birds, and perhaps a few lower animals possess the “neurological substrate” to…

Plant Adaptation

By Jim Virkler / December 14, 2016

Published 12-14-2016 When George H. W. Bush was president of the United States, he was involved in a interesting and humorous “dust-up” with nutritionists and parents alike. The humor of…

Genetics–King of Domestication

By Jim Virkler / November 26, 2016

Published 11-26-2016 Our recent blog posts have highlighted the human agricultural revolution which occurred about 10-12,000 years ago. The transitions were not uniform in all areas. Some changes had begun…

Autumn’s Temporary Decline

By Jim Virkler / November 14, 2016

Published 11-14-2016 Many readers count winter, spring, or summer as their favorite season. Others consider autumn their favorite. Their reasons are abundant and diverse. Many factors contribute to one’s assignment…

Agricultural Turning Point

By Jim Virkler / October 27, 2016

Published 10-27-2016 With respect to major turning points in human history, none is more significant than the Neolithic Revolution. Literally, neolithic means new stone age. The term stone age has…

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