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A comment on Harvesting Electricity from High-Voltage Transmission Lines Using Fences. Parent comment

Re:Harvesting Electricity from High-Voltage Transmission Lin... by Thri4895o on Sunday January 28, 2024 @04:53AM (#39164067)
Network frequency changes and fluctuates around 50hz. This change is random and unique. It is also captured on video/audio recording as background hum.

This data is quite valuable. You can reconstruct exact time (and region) when any video was taken.

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Re:Harvesting Electricity from High-Voltage Transmission Lin... by 127361 on Sunday January 28, 2024 @08:36AM (#39165588)
The police keep track of this, and it can be used to validate audio recording evidence.

https://en.wikipedia.org/wiki/Electrical_network_frequency_a...

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Re:Harvesting Electricity from High-Voltage Transmission Lin... by toomuchtodo on Sunday January 28, 2024 @11:10AM (#39167000)
https://news.ycombinator.com/item?id=38161677

https://datethis.app/

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