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7Parsnips ๐
@7parsnips.eth
A forerunner of radar, acoustic mirrors were built on the south and northeast coasts of England between about 1916 and the 1930s. These 'listening ears' were intended to provide early warning of incoming enemy aircraft by reflecting sound to an operator located at the focal point of the mirror.
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FinnTec.eth ๐ฉ๐ฎโ
@wu-tang
Damn, look at the sise of that thing. Do you knownif theyre still standing today?
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(ใค อกยฐ อส อกยฐ)ใค๐ชฟ
@lovejoy
50 $degen
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russian_acai ๐๐ฝ๐
@acai
141$farther
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