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.

Chemistry

The Chemistry of Antioxidants in Preserving Food

Quick fact

The shelf life of cooking oil can be extended from months to years just by adding tiny amounts of antioxidants—sometimes less than 0.02% of the food's weight.

Why this is interesting

You've probably seen rusty iron and wondered why it happens—but did you know the same process is quietly ruining your favorite chips and oils? What if the key to stopping it was as simple as giving away an electron?