Transverse and longitudinal waves, wave speed, frequency, wavelength, interference, polarization, and the physics of light and sound.
7 articles
13 min readYou have heard the Doppler effect thousands of times: the pitch of an ambulance siren rises as it approaches and drops as it recedes. A racing car's engine note plunges as it passes. The effect...
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16 min readEvery time you use a mobile phone, get an X-ray, feel the warmth of sunlight, or see the colours of a rainbow, you are interacting with the electromagnetic spectrum. The electromagnetic spectru...
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15 min readIf you have ever heard a thunderclap, felt a bass beat through a wall, or watched a Slinky spring ripple back and forth, you have experienced longitudinal waves. Unlike transverse waves — where...
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15 min readEvery time you look in a mirror, see a rainbow, or watch a straw appear bent in a glass of water, you are witnessing two of the most fundamental behaviours of light: reflection and refraction....
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14 min readIn 1801, Thomas Young performed one of the most elegant experiments in the history of physics. He shone light through two narrow slits onto a screen — and instead of two bright bands, he saw a...
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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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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...
Read article →Newton's laws, kinematics, projectile motion, momentum, gravitation, and the mat…
Energy, heat, work, internal energy, the laws of thermodynamics, and the kinetic…
Electric fields, magnetic fields, circuits, Maxwell's equations, and the unified…
Special relativity, quantum mechanics, wave-particle duality, the uncertainty pr…
Displacement, velocity, acceleration, equations of motion, and the mathematical …
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