Singing Fish Nails Sea Shanty Audition
https://hackaday.com/2022/07/02/singing-fish-nails-sea-shanty-audition/

The Big Mouth Billy Bass and other singing fish were a scourge first delivered to us in the late 90s. [Kevin Heckart] has been teaching them to sing new songs …read more (https://hackaday.com/2022/07/02/singing-fish-nails-sea-shanty-audition/)

Dual Power Supply in a Pinch
https://hackaday.com/2022/07/02/dual-power-supply-in-a-pinch/

by author
" data-image-caption="" data-medium-file="https://hackaday.com/wp-content/uploads/2022/06/pd-feature.jpg?w=400" data-large-file="https://hackaday.com/wp-content/uploads/2022/06/pd-feature.jpg?w=800">Recently I needed a dual voltage power supply to test a newly-arrived PCB, but my usual beast of a lab power supply was temporarily at a client’s site. I had …read more (https://hackaday.com/2022/07/02/dual-power-supply-in-a-pinch/)

Not on the Internet
https://hackaday.com/2022/07/02/not-on-the-internet/

Whenever you need to know something, you just look it up on the Internet, right? Using the search engine of your choice, you type in a couple keywords, hit enter, …read more (https://hackaday.com/2022/07/02/not-on-the-internet/)

An Affordable Reference Mic You Can Build Yourself
https://hackaday.com/2022/07/02/an-affordable-reference-mic-you-can-build-yourself/

Reference mics are vital tools for audio work. They’re prized for their flat frequency response, and are often used for characterizing the audio response of a room or space. OpenRefMic …read more (https://hackaday.com/2022/07/02/an-affordable-reference-mic-you-can-build-yourself/)

An Anodiser That Does Gradients
https://hackaday.com/2022/07/02/an-anodiser-that-does-gradients/

Anodising aluminium, the process of electrolytic build up of the metal’s the oxide layer in the presence of dyes to create coloured effects, is such a well-established process that we …read more (https://hackaday.com/2022/07/02/an-anodiser-that-does-gradients/)

Farm Data Relay System: Combine LoRa and 2.4 Ghz Networks Without WiFi Routers And Cloud Dependence
https://hackaday.com/2022/07/02/farm-data-relay-system/

Setting up a wireless sensor network over a wide area can quickly become costly, and making everything communicate smoothly can be a massive headache, especially when you’re combining short range …read more (https://hackaday.com/2022/07/02/farm-data-relay-system/)

Does Hot Water Freeze Faster Than Cold? Debate Continues Over The Mpemba Effect
https://hackaday.com/2022/07/02/does-hot-water-freeze-faster-than-cold-debate-continues-over-the-mpemba-effect/