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WiFi signals can measure heart rate

(news.ucsc.edu)
463 points bookofjoe | 1 comments | 04 Sep 25 14:53 UTC | HN request time: 0s | source
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supernova87a ◴[04 Sep 25 20:25 UTC] No.45131847[source]▶
Hey, I heard about how utility pole inspecting helicopters are able to tell the good/rotten state of wooden telephone poles by the reverb pattern of sound waves coming off the poles from the rotors -- it seems to me the whole field of non-invasive sensing (and using existing/ambient emission sources) is getting pretty impressive.
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bcrl ◴[05 Sep 25 00:56 UTC] No.45133942[source]▶
In telecommunications construction we are taught to make ample use of the "hammer test" when working on and around poles. The difference in sound between a good pole, a marginal pole and a completely rotten pole is quite significant.
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jacquesm ◴[05 Sep 25 01:09 UTC] No.45134036[source]▶
You could of course just bury your lines.
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NoPicklez ◴[05 Sep 25 03:01 UTC] No.45134603[source]▶
And I wonder why that hasn't been commonplace if its just that easy
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cycomanic ◴[05 Sep 25 05:55 UTC] No.45135382[source]▶
It is commonplace in many parts of the world. Most (all?) of Europe, Australia, many places in Asia.
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zahrc ◴[05 Sep 25 06:47 UTC] No.45135639[source]▶
And look where that got Germany; my hometown and neighbouring towns are mostly on ADSL or rarely VDSL if you’re lucky, because the big players don’t want anything to do with the cost and legal side.

Local municipalities establish de-facto monopolies and drive prices up, because they offer slightly faster and stable lines.

There is a joint effort by local utility companies in Mecklenburg and they’re trying to make things better, but anecdotally are also challenging to deal with.

My now residence here in the UK is not really rural and for years Giganet/CityFibre/toob promised gigabit soonTM for years and the date got delayed and delayed and delayed.

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1. jajko ◴[05 Sep 25 07:55 UTC] No.45136080{4}[source]▶
Yeah the reason ain't so much some cables in the ground but general byzantine bureaucratic obscurity of a state that you germans created (or allowed to be created) and maintain for yourself. Its far from the only issue stemming form it, and all are just symptoms of underlying dysfunctionalities. Also the population seems to mostly sit around waiting for politicians to fix all problems.