Sustained radio emissions originating from high over a sunspot are getting researchers thinking in new directions. Unlike solar radio bursts — which typically last only minutes or hours — these …read more (https://hackaday.com/2023/12/01/radio-emissions-over-sunspots-challenge-models-of-stellar-magnetism/)

Robot Pianist Runs on Arduino Nano
https://hackaday.com/2023/12/01/robot-pianist-runs-on-arduino-nano/

The piano has been around for a long time now. Not long after its invention, humans started contemplating how they could avoid playing it by getting a machine to do …read more (https://hackaday.com/2023/12/01/robot-pianist-runs-on-arduino-nano/)

Cat-o-Matic 3000 Serves Your Feline Masters
https://hackaday.com/2023/12/01/cat-o-matic-3000-serves-your-feline-masters/

When you have three cats and three humans, you have one problem: feeding them on a schedule without over or under feeding them. Even if there was only one human …read more (https://hackaday.com/2023/12/01/cat-o-matic-3000-serves-your-feline-masters/)

Print Your Own Brain Lamp From MRI Data
https://hackaday.com/2023/12/01/print-your-own-brain-lamp-from-mri-data/

MRIs generally fall somewhere on the scale from boring to stressful depending on why you’re having one and how claustrophobic you get. Regardless, they’re a wonderful diagnostic tool and they’ve …read more (https://hackaday.com/2023/12/01/print-your-own-brain-lamp-from-mri-data/)

LED Tester Also Calculates Resistor For Target Voltage
https://hackaday.com/2023/12/02/led-tester-also-calculates-resistor-for-target-voltage/

[mircemk] built a slick-looking LED tester with a couple handy functions built in. Not only can one select a target current to put through an LED, but by providing a …read more (https://hackaday.com/2023/12/02/led-tester-also-calculates-resistor-for-target-voltage/)

Generating Motion Via Nitinol Wires
https://hackaday.com/2023/12/02/generating-motion-via-nitinol-wires/

Generally, when we’re looking to build something that moves we reach for motors, servos, or steppers — which ultimately are all just variations on the same concept. But there are …read more (https://hackaday.com/2023/12/02/generating-motion-via-nitinol-wires/)

The Physics Lesson I Keep Re-Learning
https://hackaday.com/2023/12/02/the-physics-lesson-i-keep-re-learning/

One of the most broadly applicable ideas I’ve ever encountered is the concept of impedance matching. If you’re into radio frequency electronics, you’re probably thinking that I mean getting all …read more (https://hackaday.com/2023/12/02/the-physics-lesson-i-keep-re-learning/)

Update on the BLUFFS Bluetooth Vulnerability
https://hackaday.com/2023/12/02/update-on-the-bluffs-bluetooth-vulnerability/