Follow your curiosity

What discovery has been shared with you?

Start with one fact. Explore it, go deeper, then follow whichever branch catches your imagination.

Choose subjects for a surprise

Exploring any topic

Begin your discovery

Your next discovery is one click away.

Choose one or more subjects above, or leave Any Topic selected and let curiosity decide.

Arts & Culture

How Pointillism Exploits Optical Mixing in Color Theory

Quick fact

When you look at a pointillist painting from the right distance, your eye and brain blend the separate dots into a continuous image that is more luminous than any mixed paint could be, because no light is absorbed by a physical pigment blend.

Why this is interesting

You know how mixing yellow and blue paint makes green? But what if you could create green without mixing any paint at all—just by placing tiny dots of yellow and blue side by side?