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

Using Flash Photolysis to Measure Fast Radical Reaction Kinetics

Quick fact

Flash photolysis, developed in 1949 by Ronald Norrish and George Porter, was the first technique to directly observe radicals and other reaction intermediates on sub-millisecond timescales, a breakthrough that earned them the Nobel Prize in Chemistry in 1967.

Why this is interesting

How do chemists measure processes that last only a billionth of a second, faster than the blink of an eye?