Physics and Dismounting a Horse
Not! You can do this if the horse is walking or trotting — but you should not have to “emergency dismount” in that case.But I …
Physics
Physics Fail, Reprise
Groan. So much physics is taught without giving content and examples to the concepts. It pains me. It hurts seeing how students suffer from this; …
Physics Fail
What a shame that so much physics is taught to empty of content. Students do not know much about what the concepts mean; examples are …
Integration: Physics, Movement, and Health
Katy Bowman and Rob Wolf discuss, in a podcast, lots of great info about movement and about the relationship of health to movement, and lots …
Understanding: an Example
Most people are merely told that the earth goes around the sun. Their “knowledge” is ungrounded in evidence and lacking in reasoning. They could give …
Quote on Knowledge
Though he was wrong on many or most things, Hegel did make a statement, that, in a rational mind, is true:The true is the whole.In …
Want to Lose Weight? Just Exhale
Exhale, and you’ll lose a few grams! More precisely, 2.5-6 grams, or 0.1-0.2 oz, depending on your size.Just do the math: (lung volume) x (density of …
Ideal Gas Laws — Learned Right
The way most teach the ideal gas laws is wrongheaded and irrational: they are presented out of nowhere with no inductive basis and no context. …
Math Matters
Justin Beiber shows us, with his bad posture, what sitting in modern car seats, using big modern pillows, working at computers with chronically bad posture conspire to …
Ancient Cranes, Timeless Reason
Human ingenuity is incredible. Love it. For thousands of years, people have made cranes that could lift enormous weights, way beyond what we could lift …