← Feed

Posts

• View post

  "Earlier this month, the FHWA quietly removed a set of recommendations — including bike lanes and speed cameras — from a list of "Proven Safety Countermeasures" that have been vetted by agency staff and shown to improve road safety. A DOT spokesperson told NPR in an emailed statement on Wednesday that the department "continuously reviews its policies to ensure each promotes safety, efficiency, and common sense." "Since nearly 80% of the pop...

• View post

  #RealTimeCAD #FreeCAD writing the freaking docs takes FOREVER but is also satisfying. Trying to follow Julian Stirling's advice for OSHW docs: don't have any photos, they will be quickly out of date 😆 (am very guilty of this)

• View post

  Like, it's a bizzare place, bizzare culture, bizzare country. As a kid in Missouri running cross country I'd run around in short shorts a lot. People would call me a faggot and throw coins and water bottles at me out the window of passing cars. Until I had the bright idea of wearing American flag short shorts. Then people stopped the harassment and started chanting "U-S-A, U-S-A" 😔 it was my insurance powered by nationalism

• View post

  Looking at local news, even just in the last year there's stuff like, "cyclist dead after being hit by four cars" "cyclist survives being trapped under bridge for 13 hours after jumping off to avoid SUV" I get there are worse countries than the US in terms of road accidents per capita but are there places with worse active and intentional malice towards pedestrians and cyclists?

• View post

  Hmm. The unfortunate reality of the Carnot cycle and the need to not boil the fish? "The latest French heatwave has forced the temporary shutdown of three nuclear power stations to avoid the discharge of warm cooling water into overheated waterways." https://www.bbc.com/news/articles/clye4z168edo #Energy #NuclearEnergy #EnergyTransition

• View post

  If this isn't bureaucracy in France in a nutshell 😅 Sign outside of a relatively small wind farm giving chronology of the project, translated to English, it reads: 1998 - project starts 2002 - applied for a construction permit 🤞 🦗 ... 🦗 2018 - construction starts 😅 2020 - construction ends 2021 - commissioning and grid connection

• View post

  Hey #wildfire "enthusiasts"/community responders/concerned citizens - how do you prepare for wildfires at your home? Where I live now in France we are getting pummeled with fires at a historic rate, I have not seen any community preparedness efforts like I saw in the #California Bay Area for example since I don't think people here are really used to them in the same way... And where I grew up we didn't have wildfires, so I don't know much practical stuff. Do you have a go...

• View post

  From a ride last week around the Forêt de Saoû #drôme #bikepacking

• View post

  Okay it is a TEST (pardon the mess) but I can officially do charge/discharge tests on a much larger scale now! Should cover my needs for a while, can allegedly go up to 24 A/30 V/75 W (though not with this wiring setup, lol). Testing out automated charge/discharge testing as I mentioned in https://dualpower.supply/posts/lab-notebook-14/#large-cell-testing. It basically worked first try. Shout out to OSHW, this probably saves us thousands of euros on a commercial equivalent of similar precision....

• View post

  Anyway, I've made it, have you? #BikeTooter

• View post

  @st3phvee oh I totally get the feeling 😅 grew up in one of those cities

• View post

  @st3phvee the worst is when places install cycle/pedestrian infrastructure and then rip it out months later cause drivers complain/they can't drive properly and keep running into the barriers...

• View post

  Just watched a documentary on the Attica prison riot made up primarily of interviews with former prisoners. It's free on YouTube here: https://www.youtube.com/watch?v=oG1f7FzgXY8&feature=youtu.be It's super horrific, of course, but also inspiring/powerful to hear the prisoners' testimonies and unity. And a reminder that it's been a very long time that you cannot take at face value the word of corporate US media, law enforcement, or politicians... this is...

• View post

  Lab Notebook Entry #16 "Finished" the argon Zn-I test, but because it leaked. Made improvements to the dev kit design. https://dualpower.supply/posts/lab-notebook-16/ #academia #OpenScience #Quarto #batteries #EnergyStorage #energy #science #electrochemistry

• View post

  RE: https://floss.social/@danslerush/116480874311065853 #icanhazpdf @icanhazpdf Edit: found!! Y'all are way too fast 😂❤️ thanks! could someone with journal access pretty please send me the PDF of this paper? It's in Wiley Advanced Energy Materials. Battery hype making the rounds and I want to check out the details... Paper is here: https://advanced.onlinelibrary.wiley.com/doi/epdf/10.1002/aenm.202506734 My email is kirk@dualpower.supply Thanks in advance!

• View post

  The charging cable hanging out of the top floor window lol

• View post

  Friggin' Europe, back at it again with the micromobility. Bicycle lockers are a game changer. First time using one. Love not having to take off my lights, bags, pump, and other widgets. #BikeTooter

• View post

  #introduction for @SocialCoop - hello, all! I'm Kirk, an engineer researching the conversion/storage of clean energy: batteries, converting CO₂ into useful chemicals, etc. I'm from St. Louis, USA, did my PhD in UK, now living in France. I'm a lot of things but anticapitalist and antiauthoritarian are good catch-alls. I plan to transition away from academia and start a worker-owned enterprise around these technologies, with open-source at the core. Here to learn from oth...

• View post

  I made a sub-5-minute video of myself building a flow battery and starting a test! It's on PeerTube, ofc: https://spectra.video/w/dxjsd8AR2uAvnA6UMnnb8G

• View post

  Lab Notebook Entry #12 30 cycles, 133 hours, and now a UPS! Which has already saved my butt. And easier-to-read plots. https://dualpower.supply/posts/lab-notebook-12/ #academia #OpenScience #Quarto #batteries #EnergyStorage #energy #science #electrochemistry

• View post

  RE: https://chemisting.com/2026/02/13/could-we-create-a-zn-br-flow-battery-using-nicotinamide/ For the chemists and electrochemists! A proposed system by my colleague #chemistry #electrochemistry #EnergyStorage

• View post

  RE: https://loops.video/v/em2iXJ9LEc messing around with loops

• View post

  Working on improving hardware documentation for our open-source battery project made in @freecad and hosted by @Codeberg https://dualpower.supply/posts/lab-notebook-6/ #OpenSourceHardware #FreeCAD #documentation

• View post

  finally back to doing an ACTUAL EXPERIMENT woo (a standard ZnI flow cell test but still)

• View post

  RE: https://mastodon.social/@oshwassociation/116262427332387406 Woo, see you in Berlin!!

• View post

  Lab Notebook Entry #7 Back to wet lab, a crappy experiment to get the cobwebs off https://dualpower.supply/posts/lab-notebook-7/ #academia #OpenScience #Quarto #batteries #EnergyStorage #research #electrochemistry