the old MIRROR trick
One mirror reflects in another mirror opposite to it, which in return reflects the reflected image, which . . .
each reflection is half the height of the previous one. Theoretically, the chain is infinite, although in practical terms you can only see about five of them (maybe up to nine if you really look carefully). Here, I've tried the trick with and without the camera's flash.
the old MIRROR trick
One mirror reflects in another mirror opposite to it, which in return reflects the reflected image, which . . .
each reflection is half the height of the previous one. Theoretically, the chain is infinite, although in practical terms you can only see about five of them (maybe up to nine if you really look carefully). Here, I've tried the trick with and without the camera's flash.