Sebastian Büttrich @ ITUWhen life gives you #lemons, power #IoT devices with it.
"Actually, the grapefruit continued to provide power, but it started to smell."
https://www.qoitech.com/blog/potato-vs-grapefruit-which-makes-the-best-battery/?mc_cid=35d72ea172
ResearchBuzz: FirehoseKAIST: KAIST Succeeds in Real-Time Carbon Dioxide Monitoring Without Batteries or External Power. “The core of this new system is an ‘Inertia-driven Triboelectric Nanogenerator (TENG)’ that converts vibrations (with amplitudes ranging from 20-4000 ㎛ and frequencies from 0-300 Hz) generated by industrial equipment or pipelines into electricity. This enables periodic CO2 concentration […]
Solarbird 
Amadeus PaulussenThe Muli Muskel is an amazing little #cargobike. https://downtown-mag.com/en/muli-cycles-muli-muskel-2020-review/ #bicycle #smallwheels #lightweight #nomotor #nobattery
Muli-Cycles Muli Muskel in Review
Steel frame, folding basket and a few accessories: Muli-Cycles don't need much more than that to build a cargo bike. When folded up, the Muli Muskel cargo bike is no wider than a normal bike, dispensing with the frills that other manufacturers use to advertise their bikes. Will their concept deliver or is it a false economy?
Henrik Sørlie@RalphBrooker Love the Turner! 🤩 It reminds me of my old #Giant xtc Big Bear (1997? ‘98?). It also had a 4-bar link suspension which worked astonishingly well, a precursor of the #Maestro suspension of my current #Trance Advanced. Thanks for sharing! #mtb #mountainbiking #bike #nobattery #dealwithit 🤘🏻
puresickCool!
https://www.theverge.com/2019/1/15/18183456/wiliot-bluetooth-chip-paper-thin-battery-free-low-cost
This tiny Bluetooth chip doesn’t need a battery because it harvests energy from the air
A new paper-thin Bluetooth chip that’s able to operate entirely without a battery could be about to solve this problem. The postage stamp-sized chip from Wiliot is able to harvest energy from ambient radio frequencies in the air.