Mirror mirror
Mirrors were invented almost 200 years ago
Dear HIW,
I just learned that my mum has subscribed to How It Works as my birthday gift. I’m looking forward to receiving the first copy. Hope it doesn’t take too long to fly from the UK to Australia! I understand that white objects look white because they reflect back all the colours/visible light waves? Do mirrors reflect all visible light? If so, why don’t they look white? Thanks a lot!