Quantum, Relativity & Forces Explained | Pixelated Physics

10 articles

Chladni plate with sand on its nodal lines, a violin bow at its edge

Chladni Patterns: How Sand Draws the Shape of S...

Bow the edge of a sand-dusted metal plate and the sand leaps into sharp geometric lines. Those lines are the places that do not move. Here is the physics of...

Chladni Patterns: How Sand Draws the Shape of S...

Bow the edge of a sand-dusted metal plate and the sand leaps into sharp geometric lines. Those lines are the places that do not move. Here is the physics of...

The James Webb Space Telescope at L2, its sunshield between the distant Sun, Earth and Moon and its golden mirror

What Are Lagrange Points, and Why Does JWST Sit...

Lagrange points are five spots where a small object can keep pace with two big ones, like a spacecraft riding along with the Sun and Earth. We work out where...

What Are Lagrange Points, and Why Does JWST Sit...

Lagrange points are five spots where a small object can keep pace with two big ones, like a spacecraft riding along with the Sun and Earth. We work out where...

A planet on an elliptical orbit with the sun at one focus

Newton, Galileo and Kepler: What Each Got Right...

Kepler found that planets follow ellipses with the Sun at a focus. Galileo built the kinematics of free fall and projectile motion. Newton’s Principia united them under universal gravitation and...

Newton, Galileo and Kepler: What Each Got Right...

Kepler found that planets follow ellipses with the Sun at a focus. Galileo built the kinematics of free fall and projectile motion. Newton’s Principia united them under universal gravitation and...

Foucault pendulum swinging over a ring of pegs in a domed hall

How Does a Foucault Pendulum Prove Earth Rotates?

A long pendulum’s swing plane slowly turns relative to the floor. Foucault showed in 1851 that the turn is Earth’s rotation made visible. The rate is 360° times the sine...

How Does a Foucault Pendulum Prove Earth Rotates?

A long pendulum’s swing plane slowly turns relative to the floor. Foucault showed in 1851 that the turn is Earth’s rotation made visible. The rate is 360° times the sine...