Blog
In-depth articles on physics fundamentals written by physicists and educators. Clear explanations, real-world examples, and the conceptual depth you won't find in a typical textbook.
13 min readEvery object launched into the air — a basketball, a cannonball, a water droplet from a fountain — traces the same distinctive curved path under gravity alone. That curve is a parabola, one of...
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12 min readWhat is temperature, really? What causes the pressure a gas exerts on the walls of its container? For centuries these seemed like distinct, perhaps unanswerable questions. The kinetic theory of...
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14 min readEvery wave — whether a ripple on water, a sound in air, a transverse wave on a string, or a pulse of light crossing a vacuum — is governed by one fundamental relationship: v = fλ. This single e...
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11 min readEvery object in the universe with mass attracts every other object with mass. This isn't a metaphor — it's a precise, quantitative law. Newton's law of universal gravitation, published in 1687...
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11 min readEvery engine ever built, every metabolic reaction in your body, every star burning in the sky — all operate under one inviolable constraint: the first law of thermodynamics. It is, at its core,...
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16 min readWhen two billiard balls collide, when a rocket expels exhaust, when a gun recoils after firing, when subatomic particles scatter in a collider — the same deep principle governs every one of the...
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15 min readA basketball arcing toward the hoop, a cannonball launched from a fortress, a stream of water from a garden hose — all are examples of projectile motion. It's one of the first topics you encoun...
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10 min readAsk a physicist "what is energy?" and you'll often get a pause. Not because the question is trivial — quite the opposite. Energy is arguably the single most important concept in all of physics,...
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12 min readIf you could only keep one equation from all of physics, it should be this one: F = ma. Newton's second law of motion is the most powerful and widely applied equation in classical physics. It c...
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22 min readWhen you pluck a guitar string, watch ripples cross a pond, or see light travel 93 million miles from the Sun to your eyes, you're witnessing transverse waves in action. A transverse wave is on...
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14 min readEvery object you have ever seen — every car on the highway, every satellite in orbit, every atom vibrating in your coffee cup — follows the same three rules. These are Newton's laws of motion,...
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