Playable science.
The illusions and experiments you've read about, but this time you run them on yourself. Quick, a little addictive, and every one ends by explaining the trick (with the receipts).
Gauge
More common, or less? Trust your gut.
Bluff
Real fact, or a clever fake?
Fuse
Merge ideas into bigger ones.
Wonderword
Crack the daily science word.
Bouba
Two shapes, one word. Which is 'bouba'?
Cluster
Sixteen curiosities hide four secret groups.
Snap
How fast are your reflexes, really?
Recall
Flip, match, outwit your own memory.
Vanish
Watch a dot vanish from your vision.