The "Cobra Effect" is where a solution for a problem actually makes the problem worse.
21
Only humans shed emotional tears.
331
You can tape a small mirror onto a cone speaker, play music and shine a laser on to the mirror and the reflection will look like a laser light show on your wall.
102
When someone looks at a new love, the neural circuits that are usually associated with social judgment are suppressed.
130
Any domino can knock over another object up to 1.5x its size. The 32nd object would be big enough to knock over the Empire State Building.
18
When you are looking at someone you love, your pupils dilate, they do the same when you are looking at someone you hate.
1k
Not swinging your arms when you walk increases the effort of walking by 12%, the equivalent of walking 20% faster or carrying a 10 kg backpack.
12