Dynamics
The Centripetal Dynamic of the Gravitron
Why does a spinning carnival ride pin riders to the wall while the floor drops away underneath them? An investigation into circular motion, static friction, and the inertia myths riders swear by after they step off.
Open Reading Passage
Dynamics
The Physics of Survival
A humanized design journey through the forces that protect us in a crash — tracing the spring-loaded retractors and locking mechanisms that use inertia itself to keep a passenger's body from becoming the danger.
Open Reading Passage
Dynamics
The Physics of the Fist: Force, Impulse, and the Evolution of the Boxing Glove
From bare Greek knuckles to modern padded gloves — how Newton's Third Law and the impulse-momentum theorem explain a counterintuitive trade-off: padding can protect a fighter's hands while barely helping the brain inside the skull.
Open Reading Passage
Dynamics
The Fastest Man on Earth: Physics of Crash Survival
Meet Colonel John Stapp, the Air Force doctor who rode a rocket sled to 632 mph and back to a dead stop — and rewrote what scientists believed the human body could survive.
Open Reading Passage
Dynamics
The Bug and the Windshield: What Newton's Third Law Really Says
The most misunderstood law in physics, minus the misleading poster phrase. Students see why "equal and opposite reaction" backfires as a teaching tool, then rebuild the law the way Newton actually meant it — through a truck-and-car collision, a bowling ball and pin, and Newton's own finger-on-a-stone example — before using mass and inertia to explain why equal forces can still produce wildly unequal effects.
Open Reading Passage
Dynamics
The Law That Can't Explain Itself: Gravity and the Biggest Myth in Science
Isaac Newton could calculate gravity perfectly and still admitted he had no idea why it happened — "I frame no hypotheses." Students unpack the real difference between a scientific law and a scientific theory, from Newton's law of gravitation to Einstein's general relativity and the 1919 eclipse that proved it, ending with the GPS satellite in your pocket that needs both to work.
Open Reading Passage
Dynamics
The Shoulders of Giants: Newton, Hooke, and the Rivalry That Forged Modern Physics
Two brilliant, prickly rivals — one relentless with a microscope and a spring, the other unstoppable with a pen and a proof — whose feuds over light and gravity became an unlikely lesson in how a scientific claim is supposed to be challenged.
Open Reading Passage