Follow your curiosity

What discovery has been shared with you?

FACTREE gives you something interesting to discover every day — and something worth talking about together.

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.

Physics

Water Absorption

Quick fact

A single paper towel can absorb up to 15 times its weight in water due to its porous structure and cellulose fiber hydrogen bonds.

Why this is interesting

Why does a paper towel drink up a spill while a plastic cup stays dry? What makes some materials thirsty for water?