Sounds

1940s, After 1950, Before 1900, Books, Periodicals, Sounds

The London Hum

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‘The Hum‘ is a mysterious low-frequency sound just at the edge of hearing which seems to infect some places, but which only some people can detect. What causes it is unknown — theories range from factories and air conditioners to gravitational waves — and responsible authorities often deny that it exists at all. The most

1930s, Civil defence, Radio, Sounds

The balloon goes up

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It’s seventy years today since Britain and France declared war on Germany. At 11.15am on Sunday 3 September 1939, Prime Minister Neville Chamberlain spoke to the nation via the BBC. At 11.28am, less than a quarter of an hour later, air raid sirens went off in London and (at differing times) across much of the

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