https://journals.aps.org/prxquantum/abstract/10.1103/PRXQuantum.3.010314
" data-image-caption="Experimental setup and measured optical depth. (Credit: Josiah Sinclair et al,, PRX Quantum, 2022)
" data-medium-file="https://hackaday.com/wp-content/uploads/2024/12/photon_rb_cloud_re-emission_negative_time_experiment.jpg?w=400" data-large-file="https://hackaday.com/wp-content/uploads/2024/12/photon_rb_cloud_re-emission_negative_time_experiment.jpg?w=800">Within our comfortable world of causality we expect that reactions always follow an action and not vice versa. This why the recent chatter in the media about researchers having discovered …read more (https://hackaday.com/2024/12/31/quantum-mechanics-and-negative-time-with-photon-atom-interactions/)

Repairing a BPS-305 30V Bench Power Supply
https://hackaday.com/2024/12/31/repairing-a-bps-305-30v-bench-power-supply/

https://tahmidmc.blogspot.com/2024/12/insights-from-repairing-30v-5a-power.html
" data-image-caption="" data-medium-file="https://hackaday.com/wp-content/uploads/2024/12/lavolta_pcb_replaced_potentiometers.png?w=400" data-large-file="https://hackaday.com/wp-content/uploads/2024/12/lavolta_pcb_replaced_potentiometers.png?w=774">When [Tahmid Mahbub] recently reached for his ‘Lavolta’ BPS-305 bench supply, he was dismayed to find that despite it being a 30V, 5A-rated unit, the supply refused to output more …read more (https://hackaday.com/2024/12/31/repairing-a-bps-305-30v-bench-power-supply/)

Turning a Lada Into An EV With 50 Cordless Drills, Because Why Not?
https://hackaday.com/2025/01/01/turning-a-lada-into-an-ev-with-50-cordless-drills-because-why-not/

[Garage 54] is no stranger to vehicle-related projects of the “because why not?” variety, and their latest is using 50 cordless drills combined into a monstrous mega-motor to turn a …read more (https://hackaday.com/2025/01/01/turning-a-lada-into-an-ev-with-50-cordless-drills-because-why-not/)

Creating Temporal Light Reflections With Metamaterials
https://hackaday.com/2025/01/01/creating-temporal-light-reflections-with-metamaterials/

Owing to the wave nature of light there are many ways that such different waves can interact with each other, but also with materials. Everyone knows about reflecting light with …read more (https://hackaday.com/2025/01/01/creating-temporal-light-reflections-with-metamaterials/)

LED Wall Clock Gets Raspberry Pi Pico Upgrade
https://hackaday.com/2025/01/01/led-wall-clock-gets-raspberry-pi-pico-upgrade/

When [Rodrigo Feliciano] realized that the reason his seven-segment LED wall clock wasn’t working was because the original TG1508D5V5 controller was fried, he had a decision to make. He could …read more (https://hackaday.com/2025/01/01/led-wall-clock-gets-raspberry-pi-pico-upgrade/)

2024 Brought Even More Customization to Boxes.py
https://hackaday.com/2025/01/01/2024-brought-even-more-customization-to-boxes-py/

If you have access to a laser cutter, we sincerely hope you’re aware of boxes.py. As the name implies, it started life as a Python tool for generating parametric boxes …read more (https://hackaday.com/2025/01/01/2024-brought-even-more-customization-to-boxes-py/)

FLOSS Weekly Episode 814: The Banksy Situation
https://hackaday.com/2025/01/01/floss-weekly-episode-814-the-banksy-situation/

This week, Jonathan Bennett and Rob Campbell talk with Alistair Woodman about FRRouting, the Internet routing suite that helps make all this possible. But also business, and how an open …read more (https://hackaday.com/2025/01/01/floss-weekly-episode-814-the-banksy-situation/)

38C3: Taking Down the Power Grid Over Radio
https://hackaday.com/2025/01/01/38c3-taking-down-the-power-grid-over-radio/