Replace An AA Battery With Paper
https://hackaday.com/2022/08/08/replace-an-aa-battery-with-paper/

Paper is an ubiquitous part of society; so much so that the incredible engineering behind it often goes unnoticed. That isn’t the case for [Robert], though, who has a deep …read more (https://hackaday.com/2022/08/08/replace-an-aa-battery-with-paper/)

Large Tip Driven Copter Turns Very Slowly
https://hackaday.com/2022/08/08/large-tip-driven-copter-turns-very-slowly/

Picking propeller size for any aircraft, but especially VTOLs, it’s a tradeoff between size and RPM. You can either move a large volume of air slowly or a small volume …read more (https://hackaday.com/2022/08/08/large-tip-driven-copter-turns-very-slowly/)

Junkbox Build Keeps Tesla Coils Perfectly Varnished
https://hackaday.com/2022/08/09/junkbox-build-keeps-tesla-coils-perfectly-varnished/

Admittedly, not a lot of people have a regular need to varnish coils. It’s mainly something that Tesla coil builders and other high-voltage experimenters are concerned with. But since that …read more (https://hackaday.com/2022/08/09/junkbox-build-keeps-tesla-coils-perfectly-varnished/)

Open Source Wearables for Infants
https://hackaday.com/2022/08/09/open-source-wearables-for-infants/

We’ve seen plenty of hacks that analyze biometric signals as measures of athletic performance, but maybe not as many hacks that are trying to study behavior. Well, that’s exactly what …read more (https://hackaday.com/2022/08/09/open-source-wearables-for-infants/)

AI Creates Your Spreadsheets, Sometimes
https://hackaday.com/2022/08/09/ai-creates-your-spreadsheets-sometimes/

We’ve been interested in looking at how AI can process things other than silly images. That’s why the “Free AI Bot that Generates the Excel Formula for Any Problem” caught …read more (https://hackaday.com/2022/08/09/ai-creates-your-spreadsheets-sometimes/)

Mapping Out the LEDs on an Outlet Tester
https://hackaday.com/2022/08/09/mapping-out-the-leds-on-an-outlet-tester/

The concept of an outlet tester is pretty simple: plug the gadget into a suspect wall receptacle, and an array of LEDs light up in various patterns to alert the …read more (https://hackaday.com/2022/08/09/mapping-out-the-leds-on-an-outlet-tester/)

2022 Hackaday Prize: Congratulations to the Winners of the Hack it Back Challenge
https://hackaday.com/2022/08/09/2022-hackaday-prize-congratulations-to-the-winners-of-the-hack-it-back-challenge/