Mind reading trick
Really fun trick to do with kids. Might not work on anyone else.
Age distribution of hospital visits due to punching walls
108 billion pixel scan of ‘Girl With a Pearl Earring’ painting. Also in 3D
The BBC uses robo-cameras disguised as dung heaps to film wildlife up close
The doubly warped world of binary black holes
Wealth of the top 0.00001% in the U.S. as a share of total U.S. household wealth
Alarming.
JuryNow
Get an anonymous instant verdict from 12 real people.
The knight’s tour
A sequence of moves by a knight on a chessboard such that the knight visits every square exactly once.
Unsure Calculator
Back-of-a-napkin probabilistic calculator.