Lithium batteries have become the backbone of many modern devices ranging from toothbrushes to semi trucks, so what are we going to do with them when these rechargeable cells finally …read more (https://hackaday.com/2026/09/30/a-simple-solution-for-streamlining-battery-recycling/)

Sheety Turns Spreadsheets Into Binaries, For Some Reason
https://hackaday.com/2026/09/30/sheety-turns-spreadsheets-into-binaries-for-some-reason/

Ever wanted a spreadsheet as an executable with a built-in terminal interface? No? Well, that’s a pity because [Roberto Alsina]’s Sheety project does exactly that. Sheety compiles spreadsheet definitions into …read more (https://hackaday.com/2026/09/30/sheety-turns-spreadsheets-into-binaries-for-some-reason/)

Roman Telescope Saves Fuel, Doubles Mission
https://hackaday.com/2026/09/30/roman-telescope-saves-fuel-doubles-mission/

Contemplate the events that might end a space mission, and you might picture something dramatic: detonation on the pad, a dead guidance system, or micrometeoroids shattering delicate solar panels. More …read more (https://hackaday.com/2026/09/30/roman-telescope-saves-fuel-doubles-mission/)

Assembling and Testing a DIY Jet Turbine
https://hackaday.com/2026/09/30/assembling-and-testing-a-diy-jet-turbine/

After many months of painstaking work, [AlfMart CNC Garage] over at YouTube has finally reached the stage where he can fully assemble his DIY jet turbine and commence testing. Even …read more (https://hackaday.com/2026/09/30/assembling-and-testing-a-diy-jet-turbine/)

Apple Finally Made AirPods Repairable… Sort Of
https://hackaday.com/2026/09/30/apple-finally-made-airpods-repairable-sort-of/

It’s been true for a while now that Apple’s AirPods have been effectively disposable, with [iFixit] slapping each successive generation with an abysmal 0/10 repairability score. The moment that any …read more (https://hackaday.com/2026/09/30/apple-finally-made-airpods-repairable-sort-of/)

Open Source Tricorder Is In It For The Science
https://hackaday.com/2026/09/30/open-source-tricorder-is-in-it-for-the-science/

If you’re reading Hackaday there’s pretty good odds you’re at least somewhat fond of Star Trek. We’d bet good money most of you would quit your jobs today if a Starfleet …read more (https://hackaday.com/2026/09/30/open-source-tricorder-is-in-it-for-the-science/)

Pogo-Bot Goes All Terrain With Compliant Foot
https://hackaday.com/2026/09/30/pogo-bot-goes-all-terrain-with-compliant-foot/

What do you get when you combine a pogo stick, a quadcopter, and engineering students from the University of Toronto? This thing, apparently– a “monopedal hopping robot” that uses a …read more (https://hackaday.com/2026/09/30/pogo-bot-goes-all-terrain-with-compliant-foot/)