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Cables cramp crabs

Posted: October 11th, 2021, 10:52 am
by XFool
Mesmerised brown crabs ‘attracted to’ undersea cables

The Guardian

Research in Scotland shows animals freeze near the electromagnetic field with implications for metabolism and migration

Re: Cables cramp crabs

Posted: November 10th, 2021, 5:37 pm
by 88V8
Interesting.
We create a harmful environmental footprint even when we're trying to do 'the right thing'.
There used to be concerns around human health and powerlines, such as this association with leukaemia
https://bcmj.org/bccdc/living-near-power-lines-bad-our-health but that seems to have dropped out of the popular narrative.

V8

Re: Cables cramp crabs

Posted: November 11th, 2021, 9:19 am
by dionaeamuscipula
https://www.theguardian.com/technology/ ... rk-attacks

Article is from 2014, but I know that one of the first trial* optical cables (so late 80s) failed because of a shark bite, so the phenomenon has been known about for over 35 years.

DM
*I think. Might have been one of the very early commercial cables.

Re: Cables cramp crabs

Posted: November 11th, 2021, 5:18 pm
by scotia
Many moons ago we ran some field cable (as used in the distant past for military telephony) down a Scottish hillside in order to record some data from a Hydro plant. We had no problems with crabs or sharks, but the sheep took a fancy to it. :D