Water is actually naturally blue.
48
A lump of pure gold the size of a matchbox can be flattened into a sheet the size of a tennis court.
140
The roar that we hear when we place a seashell next to our ear is not the ocean, but rather the sound of blood surging through the veins in the ear.
479
In Finland, Valentine's Day is called "Ystävänpäivä" which translates into "Friend's day".
4
The chills you sometimes feel when listening to music is called "musical frisson."
18
It is impossible to hum if your nose is plugged.
366
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