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Sound Mirrors

Sound Mirrors

Sound Mirrors, precursors of radar

Between 1916 and 1930, the British Army built concrete vertical saucers along England's southern and northeastern coasts to detect enemy aircraft and airships.

Abbot's Cliff sound mirror

Abbot's Cliff sound mirror, built in 1928, is between Folkestone and Dover. This "concrete ear" had a range of ten kilometers.

Hythe Sound Mirror

A little further on, in Hythe, are the ruins of two experimental sound mirrors. The only remaining saucer is crumbling, while all you can find is the pedestal of the other copy.

It is best to follow the path along the bank of the Royal Militar Canal and then climb the slope (owned by the Ministry of Defense), which you can access freely.

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