Babies are born without knee caps.
78
When withdrawing money from an ATM, the 'whirring' sound before your money pops out is actually a recording. The actual mechanism is so far back that you can't hear it.
282
Mentally doing a task makes you better at it. Your mind can barely tell the difference.
18
Fine-grained volcanic ash can be found as an ingredient in some toothpastes.
55
Stilts were invented by French shepherds who needed a way to get around in wet marshes.
45
Every year around 1 billion Valentine cards are sent. After Christmas it's a single largest seasonal card-sending occasion.
14