Abstract visualization of particles diffusing from a central point
Understanding how things spread

The science of diffusion, from particles to pixels

Diffusion Science is where physics meets machine learning. We explain how molecules spread through membranes, how heat moves through metal, and how AI turns noise into images — all through one unifying idea.

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Six domains, one underlying principle

Visualization of noise gradually transforming into a coherent image

How diffusion works, in four steps

Whether in a coffee cup or a neural network, diffusion follows the same fundamental logic. Here's the unifying idea.

1

Start with order

A concentrated substance — molecules in a corner, or a clear image — exists in a low-entropy state.

2

Add randomness

Random motion — thermal jiggling or Gaussian noise — begins to spread things out over time.

3

Follow the gradient

Flow moves from high concentration to low. In physics it's molecules; in AI it's probability.

4

Reverse the process

AI models learn to undo diffusion — pulling signal back out of noise, one step at a time.

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