What’s the First Thing You Saw?
What’s the first thing you noticed on seeing the image above? Was it the curved stick? Our brain is hard-wired from birth to notice shapes…
Tag: optical illusion
Fast Recognition and Optical Illusions in Nature
Our brains are pattern-recognising machines. This is true everywhere, but not least in nature, where it honed these skills over millions of years. Bird calls,…
Tracking Tractors
Was this tractor heading towards us or away from us? Spoiler Alert 🙂 Tractors gain more traction with a ‘backwards’ herring-bone tread on their tyres.…
Optical Illusions at Night
The human brain does a lot of things that we’re not aware of. It takes shortcuts and most of the time that saves us time.…
Contrail Shadows
My thanks to Alan Gibson, author of the Urbane Forager blog and book, for sending me these great images of a contrail shadow. (Contrails are…