Sound Mirrors

I want a pair of these for my garden: Sound Mirrors by Tim Bruiniges

Andrew Grantham maintains a list of real sound mirrors in the UK (with locations) originally used for early detection of incoming bombers during WWI, although it wasn’t only the UK that used them – check out these Japanese War Tubas

Wartuba

When doing a quick search I entered ‘tuba war’ instead of ‘war tuba’ and suddenly imagined a battle of the brass bands!

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