Interesting. We learn more and more about Vitamin D as we conceptualize the things of and causes in reality. In “Sunlight and Vitamin D,” the folks at Uvguide.co.uk write: Calcediol [25-hydroxy-vitamin D3] is then circulated in the bloodstream all around the body. In the kidneys, some is converted to the active hormone calcetriol. This plays […]
Read MoreButterflies, Flight, and Physics
In “How Butterflies Fly,” J.N. Quinn writes: The wings of butterflies, and indeed, most insects, have a sharp edge. The sudden cut of of a butterfly’s wing pushes air much like a spoon in coffee. In the case of coffee and creamer, swirls appear around a low pressure center; butterflies use the air in the […]
Read MoreBasic Physics in Practice
Local EMF
Using antennasearch.com, you can find out how close cell towers and antenna are to your home, place of work, place where you exercise, and places where your children spend time. My recommendation, based on what I have learned, is that we try to keep at least half mile away from cell towers.
Read MoreField Notes 1-12-17 On Revolutionizing Science Education
Ecological Observations: an Exercise in Reasoning 12–24–16
Field Notes on Logic and Context 11-4-16
Field Notes on Word Problems 11-15-16
Field Notes on the Nature of Science 11-12-16
Definitions Clarify “Projectile Motion”
Recently, I have had some good tutoring sessions with someone in high school physics. Concepts clarified for him when we talked definitions and formulated them from reality — the only way to grasp definitions objectively and logically. We didn’t throw out some verbal concatenation of words and call it a definition, as is sadly too […]
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