Joey Hess designed the first Fridge0 a year ago: it uses a standard chest freezer with added thermal mass, a simple controller, and a photovoltaic panel that effectively stores sunshine as coldness, obviating the need for expensive backup batteries. The Fridge0 is an advance on traditional off-grid 12v solar fridges that assume that solar panels are expensive and inefficient; by exploiting modern PV technology, Hess says "A kilowatt of solar panels provides enough power to run a conventional fridge on even most cloudy days, and costs less than a commercial offgrid fridge." (via Kottke)
US Air Force research scientist Michael Hansen created Rhasspy as a privacy-oriented alternative to surveilling "voice assistant" products like Google Assistant, Alexa and Siri; the free/open project supports dozens of languages from German, French and English to Mandarin, Vietnamese and Russian, and is designed to run on Raspberry Pi-based devices.
Librecorps is a program based at the Rochester Institute for Technology's Free and Open Source Software (FOSS) initiative that works with UNICEF to connect students with NGOs for paid co-op placements where they build and maintain FOSS tools used by nonprofits.
Phil from Adafruit writes, "For a limited time, whenever you buy a Circuit Playground Express the regular price of $24.95 here, on this page, Adafruit will automatically donate one to Black Girls CODE. Black Girls CODE's goal is to empower young women of color ages 7-17 to embrace the current tech marketplace as builders + […]
In case you’re one of those computer shoppers who instinctively turns up their nose at the very mention of the word refurbished, here are a couple myths worth dispelling. Refurbished equals junk somebody didn’t want. While desktops, laptops, notebooks, Chromebooks and tablets marked as refurbished may have been unboxed at some point, meaning they can […]
Electric bikes aren’t toys. And they aren’t a fad. In fact, more and more communities are starting to catch on that e-bikes are a lot more than an amusing gadget for the tech geek. Following a six-month study, Johnson County, Kansas, home to many Kansas City suburbs, became just the latest U.S. community to allow […]
Whether you’re living in a city that has already taken measures to reduce plastic bag use, the small silver lining of the pandemic has inspired you to make changes, or you’ve already started living a greener lifestyle, reusable produce bags are a great addition to your shopping routine. And if you’re going to invest in […]