Boing Boing on MSN
Bicycle bell designed to defeat noise-cancelling headphones
Škoda's DuoBell is designed to be heard by people wearing high-end headphones, inexpensively blowing through active noise ...
What does a 200-ton bell sound like? It’s an academic question, as the only accessible bell of that size broke beyond repair shortly after manufacture in 1732 in Russia. The Tsar Bell captured the ...
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