If you are making certain precision measurements, you know you need to terminate the connections with the right impedance, normally 50 ohms. Proper termination minimizes reflections on the line which …read more (https://hackaday.com/2023/12/18/simulate-a-better-termination/)

Recycling Batteries with Bacteria
https://hackaday.com/2023/12/18/recycling-batteries-with-bacteria/

Vehicle battery recycling is going to be a big deal with all the electric cars hitting the roads. What if you could do it more effectively with the power of …read more (https://hackaday.com/2023/12/18/recycling-batteries-with-bacteria/)

A 360° View of a Classic Drive-In Speaker
https://hackaday.com/2023/12/18/a-360-view-of-a-classic-drive-in-speaker/

Readers of a certain vintage no doubt have pleasant memories of drive-in theaters, and we are chuffed to see that a few hundred of these cinematic institutions endure today. While …read more (https://hackaday.com/2023/12/18/a-360-view-of-a-classic-drive-in-speaker/)

It’s An Audio Distortion Analyzer, Just Not The One You Were Hoping For
https://hackaday.com/2023/12/19/its-an-audio-distortion-analyzer-just-not-the-one-you-were-hoping-for/

An audio distortion analyzer is a specialist piece of analogue test equipment that usually costs a lot of money and can be hard to track down on the second hand …read more (https://hackaday.com/2023/12/19/its-an-audio-distortion-analyzer-just-not-the-one-you-were-hoping-for/)

Bringing APL To The Masses: The History Of The IBM 5100
https://hackaday.com/2023/12/19/bringing-apl-to-the-masses-the-history-of-the-ibm-5100/

The IBM 5100, image from December 1975 issue of BYTE.
" data-medium-file="https://hackaday.com/wp-content/uploads/2023/12/ibm_model_5100_byte_magazine.jpg?w=400" data-large-file="https://hackaday.com/wp-content/uploads/2023/12/ibm_model_5100_byte_magazine.jpg?w=800">The 1970s was a somewhat awkward phase for the computer industry — as hulking, room-sized mainframes became ever smaller and the concept of home and portable computers more capable than …read more (https://hackaday.com/2023/12/19/bringing-apl-to-the-masses-the-history-of-the-ibm-5100/)

Parachute Drops Are Still A Viable Solution For Data Recovery From High Altitude Missions
https://hackaday.com/2023/12/19/parachute-drops-are-still-a-viable-solution-for-data-recovery-from-high-altitude-missions/

Once upon a time, when the earliest spy satellites were developed, there wasn’t an easy way to send high-quality image data over the air. The satellites would capture images on …read more (https://hackaday.com/2023/12/19/parachute-drops-are-still-a-viable-solution-for-data-recovery-from-high-altitude-missions/)

Making a Kit-Kat Clock Even Creepier
https://hackaday.com/2023/12/19/making-a-kit-kat-clock-even-creepier/

If there’s anything as American as baseball and apple pie, it’s gotta be the Kit-Kat clock in the kitchen. For the unfamiliar, the Kit-Kat clock is special in that its …read more (https://hackaday.com/2023/12/19/making-a-kit-kat-clock-even-creepier/)