A cat’s ability to see well at night is due to its ” tapetum lucidum “, a structure that reflects visible light back through the cat’s retina. It’s also what causes the eyes’ weird ‘glowing’ effect in the dark.

The “IKEA effect” is the tendency for people to place a disproportionately high value on objects that they partially assembled themselves, such as furniture from IKEA, regardless of the quality of the end result.

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. Any cup-shaped object placed over the ear produces the same effect.