A speck of gold dancing to a pipe organ’s tune has helped solve a long-standing mystery: why certain wind instruments violate a mathematical formula that should describe their sound. In 1860, ...

Simply defined, noise is unwanted sound. Efforts to manage noise in industrial spaces range from hearing protection for workers to blocking, breaking, absorbing, or isolating the noise at the source.

Prague's St. Vitus Cathedral, a favourite feature of postcards from the Czech capital, is next year set to inaugurate a ...