The jaws of infinity
Question: If I place two mirrors facing each other and stand between them, I
can see my reflection stretching away into what looks like infinity. Is this
really infinity? How small can my reflection get in this manner, and can it be
said to end in any particular way?
Answer: No mirror reflects 100 per cent of the light falling on it. If your
mirror is very good and reflects 99 per cent of the light, after some 70
reflections only 50 per cent of the light is left, after 140 reflections only 25
per cent…
