Objects in the water look shallower than they really are.
You shine a laser beam through a block of glass and instead of the laser beam going straight, it bents and shoots at a different angle.
Uhmm.... it's when light goes through water? no! it is the bending of light as it goes through water.
rainbows
1). You shine a laser beam through a block of glass and instead of the laser beam going straight, it bents and shoots at a different angle. 2). I cannot read 12-point type without my eyeglasses. But...