CBC Technology ScienceMar 24
Q&A | U of A researcher on battery-free sensor to track vital signs in extreme cold
University of Alberta and Department of National Defence researchers have developed a tiny battery-free sensor that can be used to track vital signs of soldiers in the field, including checking for risk of frostbite in extreme cold.
https://www.cbc.ca/news/canada/north/u-of-a-sensor-technology-frostbite-9.7135410?cmp=rss
CBC NorthMar 21
Q&A | U of A researcher on battery-free sensor to track vital signs in extreme cold
University of Alberta and Department of National Defence researchers have developed a tiny battery-free sensor that can be used to track vital signs of soldiers in the field, including checking for risk of frostbite in extreme cold.
https://www.cbc.ca/news/canada/north/u-of-a-sensor-technology-frostbite-9.7135410?cmp=rss
DanStaffordNov 23

#mwgic #2025 #Battery #BatteryFree #BeyondBatteries #Water #Silicon

https://www.thecooldown.com/green-tech/water-flow-friction-nanoscale-energy/

Scientists make breakthrough that could render batteries obsolete: 'The beginning of a new generation'

Experts are leveraging water flow friction on the nanoscale level with electrifying results that could power sensors and other tech.

The Cool Down
N-gated Hacker NewsJun 16, 2025
🚀 KAIST has reached the pinnacle of human achievement by inventing a CO2 monitor that needs neither batteries nor power. 🎉 Finally, a solution for all those times you've been plagued by pesky batteries while monitoring your air. 🙄
https://news.kaist.ac.kr/newsen/html/news/?mode=V&mng_no=47450 #CO2monitor #batteryfree #innovation #airquality #technology #HackerNews #ngated
News at KAIST

사이트 설명을 간략히 기록 해주세요.

Show threadAaro KoskinenMay 18, 2025

@ikkeT Internal lithium batteries are anti-pattern: a) they lack proper hard case (which is primary reason for making them - to save BOM money in manufacturing). Hard case in lithium batteries would help battery to stay fit and make it more safe.
b) there's no way for end user to observe a dangerous swollen battery until it's too late. I once had ThinkPad where the battery got swollen so that touchpad stopped working.

I boycott such computers; with phones it's more difficult.

#BatteryFree

N-gated Hacker NewsMay 7, 2025
🎉 Congratulations! 🎉 You've single-handedly revolutionized #laziness by crafting a custom TV remote because replacing batteries was just too mainstream. 🚀 Let's all salute this groundbreaking #innovation while the rest of humanity continues to wallow in their AAA-battery-reliant misery. 😂🔋
https://www.thestockpot.net/videos/theeverythingremote #customremote #batteryfree #techhumor #hackernews #HackerNews #ngated
My TV Remote Stopped Working… So I Made My Own. — The Stock Pot

The Stock Pot
Hacker NewsMar 2, 2025
New battery-free technology can power devices using ambient RF signals — https://news.nus.edu.sg/nus-researchers-develop-new-battery-free-technology/
#HackerNews #batteryfree #technology #ambientRF #signals #innovation #greenenergy #sustainability
NUS researchers develop new battery-free technology to power electronic devices using ambient radiofrequency signals

Ubiquitous wireless technologies like Wi-Fi, Bluetooth, and 5G rely on radio frequency (RF) signals to send and receive data. A new prototype of an energy harvesting module – developed by a team led by scientists from the National University of Singapore (NUS) – can now convert ambient or ‘waste’ RF signals into direct current (DC) volta...

NUS researchers develop new battery-free technology to power electronic devices using ambient radiofrequency signals
Xamanismo ColetivoJan 11, 2025
Livre da fumaça: Para mim, bom é desenvolver o controle do calor—para extrair o sumo perfumoso da planta sem chegar às cinzas do final—na lida direta com o elemento #fogo, usando 1 maçarico em um #Dynavap de titânio. O "click" ajuda, mas rola uma intuição xamânica sobre o ponto certo.
#batteryfree
Aaro KoskinenDec 10, 2024

Prepared some #batteryfree #Nokia #N9 devices for mainline #Linux #OMAP #hacking. All of them had swollen battery - wouldn't keep this old stuff around anymore at home w/battery connected.

Removal is PITA. Plastics (cover needs to be stretched) has aged & cracks, also maybe 50% screws broke when unscrewing them thanks to heavy thread lock. Not sure what all I broke but at least 1 display remains working. TV out is handy in case you break the display.

This kind of mechanics should be illegal.

Aaro KoskinenMay 2, 2024

No more new laptops for me.

#SlowLiving #LowPower #BatteryFree #Linux