How things work
Scroll-driven 3D explainers. Move down the page and the model moves with you.
Each page pairs a 3D model with a short explanation. The model is tied to your scroll position, so the mechanism moves one step at a time instead of looping at you. The text stands on its own if you would rather just read.
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How an electric motor works
One coil, two magnets and a split ring. A 3D model of a brushed DC motor you drive by scrolling, one revolution from start to finish.
8 steps
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How a four-stroke engine works
The four strokes of a petrol engine — intake, compression, power, exhaust — shown on a 3D model you drive by scrolling.
8 steps
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How GPS knows where you are
Four satellites, four atomic clocks and one piece of geometry: how a receiver turns time stamps into a point on the ground, shown on a 3D model you drive by scrolling.
9 steps
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How a heat pump works
A heat pump does not make heat, it moves it. The four steps of the refrigeration cycle — evaporate, compress, condense, expand — on a 3D model you drive by scrolling.
8 steps
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How a speaker works
A loudspeaker is an electromagnet glued to a stiff paper cone. Follow one signal from the cable to your eardrum on a 3D model you drive by scrolling.
9 steps