Bracelet that turns body heat into energy - Page 1
Forum section: electronics / general

author: Halcyon
author_rank: Unknown
timestamp: November 01, 2022, 09:27:03 am
content: Original article:https://www.newscientist.com/article/2276215-wristband-that-turns-body-heat-into-electricity-can-power-an-led/But that wasn't the reason for posting... It was the attached image that I found on Twitter and had a chuckle at.

author: Ed.Kloonk
author_rank: Super Contributor
timestamp: November 01, 2022, 09:28:11 am
content: I possess that power.

author: Halcyon
author_rank: Unknown
timestamp: November 01, 2022, 09:30:10 am
content: Maybe I can harness some of that? I've always been told I'm like a hot water bottle in bed.

author: Ed.Kloonk
author_rank: Super Contributor
timestamp: November 01, 2022, 09:34:51 am
content: Quote from: Halcyon on November 01, 2022, 09:30:10 amIt's the static electricity. The guy sold you polyester sheets not the silk ones you wanted.

author: Haenk
author_rank: Super Contributor
timestamp: November 01, 2022, 11:23:48 am
content: I have faint memories of wristwatches that used this energy harvesting back in the 80s(?).Unfortunately, this is not really working too well - it needs an as-large-as-possible deltaT to work, so not suited for hotter regions.

author: Ed.Kloonk
author_rank: Super Contributor
timestamp: November 01, 2022, 11:26:24 am
content: Quote from: Haenk on November 01, 2022, 11:23:48 amThey should have incorporated it into the talking clock/calculator watch. Remember what a power hog that was?

author: Haenk
author_rank: Super Contributor
timestamp: November 01, 2022, 11:59:31 am
content: Quote from: Ed.Kloonk on November 01, 2022, 11:26:24 amI still have one, pretty beaten up, though. And not sure if it's still working.(Alas that's a cheap clone of the original SEIKO one...)

author: MrMobodies
author_rank: Super Contributor
timestamp: November 01, 2022, 01:11:31 pm
content: I see all they have to show is a crappy stock photo "Body temperaturecouldone day be harnessed by wristbands to power smartwatchesAlena Butusava/Getty Images" and ", the technologymay be ableto power smartwatches and end the need for traditional charging hardware."Bullshit buzzword "the technology"Claims: "*may*be able to do this and that.Then it might not.I remembered something in the news about landlines early this year:I heard these two ladies talk on the news and as soon as I heard"the technology"being repeated excessively about "cloud phones" it seemed to me like the were trying to make it sound *big* and when they want people to stop using something old (that actuallt worked) they were saying about "getting them off these *products*" with this smirk/funny look on their face as they were saying the word "product". Their conservation didn't include replacing any possible old ADSL connections with FTTP or even FTTC and I know someone with ADSL 1 (the best he can get in his village) was given a VOIP phone as Openreach turned up one day to disconnect the the voice landlines in that village. Since then he has had problems with it and when his children are using the broadband. I though they only take a 4 to 8 kbps and relies on low latency.Another thing about putting in property in a trust instead of inheritance where it could get tax, a lady said on the news "Do these *products* even work?" and they left at that with that same kind of smirk/funny look on their face.

author: DavidAlfa
author_rank: Super Contributor
timestamp: November 01, 2022, 01:18:55 pm
content: Perfectly possible, could be a peltier cell, generating few milliwatss to power some low-power IOT thing.However this belongs to meme section

author: themadhippy
author_rank: Super Contributor
timestamp: November 01, 2022, 01:47:07 pm
content: Nothing new here,this sort of thing has been around since before electricity was invented,you buy your other half a nice bracelet and suddenly there all hot and ...........,suspicious

author: Haenk
author_rank: Super Contributor
timestamp: November 02, 2022, 02:15:47 pm
content: I'll throw in the first goooooogle match:https://www.technologyreview.com/2016/11/16/107172/body-heat-powers-this-smart-watch/and more importantlyhttps://www.plus9time.com/blog/2020/5/30/body-heat-powered-watches-seiko-thermicI think it's the latter I remembered, though my brain dates it way further backEdit: After scrolling through the article, it mentions a Bulova watch from 1982. That's more like it