Mystery #4Tier 2physics / light
How do periscopes and kaleidoscopes work?
A periscope lets you peek over a wall or around a corner without being seen. A kaleidoscope turns a few coloured beads into a dazzling, endless flower of patterns. Both are just tubes with a couple of mirrors inside, so how do two mirrors do something so magical?
Your guess
What's your hunch about how a couple of mirrors let you see around corners or make endless patterns?
There's no single magic word to type, have a go in your own words, then reveal the answer to see how close you got.
Make a guess to unlock the hints and the answer.