Hessaby’s Theory of Infinitely Extended Particles
The gravitational, electric, and nuclear fields are all special cases of a single, more general field.
The Coriolis Effect: Physics of Rotating Reference Frames
Picture this: you’re standing on a spinning turntable and you throw a ball toward your friend. The ball travels in a perfectly straight line — but because …
Kepler’s Third Law — Planetary Harmony: T² = a³
Mercury orbits the Sun in 88 days. Earth takes 365 days. Jupiter takes 12 years. Neptune takes 165 years. Are these numbers random?
Kepler’s Second Law — Equal Areas: Why do planets speed up near the Sun?
Summer in the Northern Hemisphere lasts about 93 days. Winter lasts 89 days. Where does that 4-day difference come from? Doesn’t Earth orbit at a constant …
Newton’s Second Law — F=ma: The harder you push, the faster it goes
Try an empty supermarket trolley — it flies forward with a small push. Now fill it with groceries. Give it the same push. It moves much more slowly. Why?
Newton’s Third Law — Action and Reaction: Every force has a counterforce
How do you walk? You put your foot on the ground and push backward. But what moves you forward — you didn’t apply any force to yourself!
Kepler’s First Law — Elliptical Orbits: Why don’t planets move in circles?
Before Kepler, everyone believed planets move in circles. Why? Because a circle is “perfect” and the heavens must be perfect — or so they thought. But the …
Newton’s First Law — Inertia: Why does everything want to stay the way it is?
A question: when you’re sitting in a car and the driver suddenly brakes, why does your body lurch forward? Nobody pushed you. Yet something invisible seems…
Viscosity — Shear Rate, Shear Stress and Newton’s Law
Learn about fluid viscosity, shear stress, shear rate, and Newton’s law of viscosity with a Couette flow simulation. Applications in Reynolds number and IYPT snail ball.
The Mass Law in Sound Insulation
When a sound wave strikes a wall, part of its energy is reflected, part is absorbed, and part passes through to the other side. Acoustical engineers quanti…