Model train enthusiast James Risner decided to turn several toy locomotive sets into a contemporary kinetic art installation of sorts by creating an infinite loop. The seven linked trains can travel forward or backward at surprisingly quick speed, creating a hypnotic spiral of of motion. I wonder if this could be scaled to a Metropolis II level? (via Laughing Squid)
Thereâ€™s been a lot of commentary on a recent study by the Replication Project that attempted to replicate 100 published studies in psychology, all of which found statistically significant effects of some kind. The results were pretty dismal. Only about one-third of the replications observed a statistically significant effect, and the average effect size was about half that originally reported.
Unfortunately, most of the discussion of this study Iâ€™ve seen, notably in the New York Times, has missed the key point, namely the problem of publication bias.