Why Diffraction Gratings Create Fourier Transforms
https://hackaday.com/2026/01/27/why-diffraction-gratings-create-fourier-transforms/

When last we saw [xoreaxeax], he had built a lens-less optical microscope that deduced the structure of a sample by recording the diffraction patterns formed by shining a laser beam …read more (https://hackaday.com/2026/01/27/why-diffraction-gratings-create-fourier-transforms/)

Pi Compute Module Powers Fully Open Smartphone
https://hackaday.com/2026/01/27/pi-compute-module-powers-fully-open-smartphone/

With the powerful off-the-shelf hardware available to us common hardware hobbyist folk, how hard can it be to make a smartphone from scratch? Hence [V Electronics]’s Spirit smartphone project, with …read more (https://hackaday.com/2026/01/27/pi-compute-module-powers-fully-open-smartphone/)