By: Jim Virkler; ©2014 Diligent inquiry yields informative facts in a complex subject such as climate change. Before 1988 the topic did not generate heated emotions. During the 1970s scientists…
By: Jim Virkler; ©2014 On the evening of March 10, 2014, over half of the Democratic senators in Washington staged an all-night “filibuster” in senate chambers to highlight awareness of…
By: Jim Virkler; ©2014 The counsel of Psalm 90:12 is appropriate for daily and mundane as well as eternal and spiritual guidance. “Teach us to number our days aright, that…
By: Jim Virkler; ©2014 Relentless cold describes the winter of 2013-2014 in the central and eastern United States. Accompanying the cold have come frequent snows. In our region this winter…
By: Jim Virkler; ©2014 Dealing with each of the three topics in this post title with any degree of thoroughness could be an exercise in futility. Each topic, however, has…
By: Jim Virkler; ©2014 For animals and plants, including humans, cell division resulting from mitosis results in growth, repair, and renewal of the body and its tissues. Our posts have…
By: Jim Virkler; ©2014 Flashback to memories of your early courses in biology. One term–mitosis–may come to mind. Perhaps you even recall diagrams or animations of chromosome pairs organizing themselves…
By: Jim Virkler; ©2014 Our posts on human reproduction have focused on only one of earth’s species. The total species count is variously estimated to number in the millions. According…
By: Jim Virkler; ©2014 Building projects supply instructive imageries to illustrate life’s important lessons. Imageries use figurative language to make a point. As a classroom teacher, one of my favorite…
By: Jim Virkler; ©2014 The astonishing beginning and subsequent development of the human embryo and its transition to the category of fetus at roughly eight weeks is known to medical…
