As frustrating as having an atmosphere can be for physicists, it’s just as bad for astronomers, who have to deal with clouds, atmospheric absorption of certain wavelengths, and other irritations. …read more (https://hackaday.com/2025/10/13/deforming-a-mirror-for-adaptive-optics/)

Give Your Microscope Polarized $5 Shades to Fight Glare
https://hackaday.com/2025/10/13/give-your-microscope-polarized-5-shades-to-fight-glare/

Who doesn’t know the problem of glare when trying to ogle a PCB underneath a microscope of some description? Even with a ring light, you find yourself struggling to make …read more (https://hackaday.com/2025/10/13/give-your-microscope-polarized-5-shades-to-fight-glare/)

Waverider: Scanning Spectra One Pixel at a Time
https://hackaday.com/2025/10/13/waverider-scanning-spectra-one-pixel-at-a-time/

Hyperspectral cameras aren’t commonplace items; they capture spectral data for each of their pixels. While commercial hyperspectral cameras often start in the tens of thousands of dollars, [anfractuosity] decided to …read more (https://hackaday.com/2025/10/13/waverider-scanning-spectra-one-pixel-at-a-time/)

SMD Soldering with Big Iron
https://hackaday.com/2025/10/13/smd-soldering-with-big-iron/

You have some fine pitch soldering to do, but all you have on hand is a big soldering iron. What do you do? There are a few possible answers, but …read more (https://hackaday.com/2025/10/13/smd-soldering-with-big-iron/)

Etching Atomically Fine Needle Points
https://hackaday.com/2025/10/13/etching-atomically-fine-needle-points/

[Vik Olliver] has been extending the lower resolution limits of 3D printers with the RepRapMicron project, which aims to print structures with a feature size of ten micrometers. A molten …read more (https://hackaday.com/2025/10/13/etching-atomically-fine-needle-points/)

Building the LEM’s Legs
https://hackaday.com/2025/10/13/building-the-lems-legs/

If you built a car in, say, Germany, for use in Canada, you could assume that the roads will be more or less the same. Gravity will work the same. …read more (https://hackaday.com/2025/10/13/building-the-lems-legs/)

BlueSCSI: Not Just for Apple
https://hackaday.com/2025/10/13/bluescsi-not-just-for-apple/

Anyone into retro Macintosh machines has probably heard of BlueSCSI: an RP2040-based adapter that lets solid state flash memory sit on the SCSI bus and pretend to contain hard drives. …read more (https://hackaday.com/2025/10/13/bluescsi-not-just-for-apple/)

They Don’t Make $37 Waveform Generators Like They Used To
https://hackaday.com/2025/10/14/they-dont-make-37-waveform-generators-like-they-used-to/