Featured in Head Trip
Here’s what happens when lightning doesn’t hit the ground
Upside down lightning is a seemingly rare weather event.
Why your brain thinks these identical lines are different lengths
The Müller–Lyer illusion toys with how your brain remembers the world around you.
Horizontal stripes make you look thinner, not wider
A brain scientist's guide to fashion.
What color are these squiggly shapes?
The watercolor illusion takes advantage of how our brains perceive shapes and colors
Why does this straw look like it’s broken?
Understand this and you'll be a master spearfisher.
What is causing these black and white bars to change direction?
A quick physics lesson should clear things up