14:57:29Mar 15, 2025Europe, Athens

One Object Every Month

Acoustic Telegraph

Object of the Month
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  01 September 2021 - 30 September 2021

  Science & Technology Museum, University of Patras Campus, Greece

A copy of an Acoustic Telegraph used in the campaigns of Alexander the Great.

It consisted of a tripod, about 4m high, joined at the top, from which hung a large round horn, tied with a rope.

The way the horn was hung allowed it to rotate so that the signal went in all directions. It could be heard clearly, even at a distance of 4km. depending on the morphology of the soil and the direction of the wind.

 

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List of Dates (Page event details)


  • From 01 September 2021 to 30 September 2021

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