Physics Explained Courses

What Happens When You Squeeze Light? A Quantum Explanation

Explore the quantum mechanics behind light diffraction through narrow slits, revealing how this common phenomenon demonstrates Heisenberg's uncertainty principle and the wave-particle duality of photons.

• YouTube
• 12 minutes
• Self-Paced
• Free Video

The Dirac Equation: The Most Important Equation You've Never Heard Of

Explore the revolutionary Dirac Equation, its mathematical foundations, and how it merged quantum mechanics with special relativity, leading to profound insights about the nature of matter and the prediction of antimatter.

• YouTube
• 51 minutes
• Self-Paced
• Free Video

Does the Universe Have a Maximum Temperature? The Planck Temperature Explained

Explore the concept of maximum temperature in the universe through quantum mechanics, relativity, and gravity. Discover how the Planck temperature represents a fundamental boundary where our current physics theories break down.

• YouTube
• 28 minutes
• Self-Paced
• Free Video

How Many Neutrons Can You Stack Before Reality Breaks?

Explore the fascinating limits of neutron stacking and discover how quantum mechanics, relativity, and nuclear forces determine the maximum mass of neutron stars and their role in shaping our universe.

• YouTube
• 31 minutes
• Self-Paced
• Free Video

How Can a Dead Star Outshine the Sun 200,000 Times?

Uncover the extraordinary physics of pulsars - neutron stars that spin hundreds of times per second and shine brighter than 200,000 Suns through rotational energy and magnetic fields.

• YouTube
• 35 minutes
• Self-Paced
• Free Video

Can a Shadow Really Prove the Earth Is Round?

Discover how Eratosthenes' ancient shadow experiment proves Earth's spherical shape by testing the method across multiple cities and debunking flat Earth claims through mathematics.

• YouTube
• 32 minutes
• Self-Paced
• Free Video

The Empty Atom Myth: Why "Nothing" Isn't Empty at All

Explore the quantum reality behind the "empty atom" myth, discovering how quantum fields, zero-point energy, and vacuum fluctuations reveal that atomic "emptiness" is actually teeming with physical activity.

• YouTube
• 43 minutes
• Self-Paced
• Free Video

How Did One Equation Predict Antimatter and Spin?

Delve into the mathematical structure of the Dirac equation to understand how it predicts antimatter and spin-½ particles through a step-by-step exploration of its solutions and profound implications for quantum physics.

• YouTube
• 1 hour 3 minutes
• Self-Paced
• Free Video

Understanding the Pauli Exclusion Principle and Quantum Mechanical Properties of Matter

Discover how quantum mechanics and the Pauli Exclusion Principle explain why matter is solid, why objects maintain their shape, and why you can't walk through walls.

• YouTube
• 49 minutes
• Self-Paced
• Free Video

What If the Earth Fell into the Sun? - A Physics Analysis

Explore a fascinating physics thought experiment examining Earth's hypothetical fall into the Sun, from orbital mechanics to temperature changes and tidal forces over a two-month catastrophic journey.

• YouTube
• 36 minutes
• Self-Paced
• Free Video

Understanding Simple and Physical Pendulum Oscillations

Explore the physics of pendulum motion through derivations of equations using Newton's Laws and small angle approximations for both simple and physical pendulums.

• YouTube
• 15 minutes
• Self-Paced
• Free Video

Feynman's Path Integral and Light's Multiple Path Behavior

Explore Feynman's path integral formulation through visual analogies and mathematics to understand how light takes multiple paths and creates interference patterns in quantum mechanics.

• YouTube
• 43 minutes
• Self-Paced
• Free Video

Why Don't We Feel the Earth Move?

Explore the physics behind why we don't perceive Earth's motion, from Galilean relativity to centripetal forces, while discovering how our planet's rotation subtly affects weight and why orbital motion feels like nothing at all.

• YouTube
• 24 minutes
• Self-Paced
• Free Video

Quantum Mechanics and Atomic Size - Understanding Atomic Stability and Structure

Delve into quantum mechanics principles explaining atomic stability, size determination, and probability distributions through Heisenberg's uncertainty principle and hydrogen atom analysis.

• YouTube
• 43 minutes
• Self-Paced
• Free Video

What if Atoms Had No Nucleus? The Untold Story of J.J. Thomson's Rotating Rings

Explore J.J. Thomson's sophisticated 1904 atomic model featuring electrons in rotating rings within a positive charge sphere—a mathematical framework linking electron arrangements to chemical properties that preceded Rutherford's nuclear model.

• YouTube
• 50 minutes
• Self-Paced
• Free Video