Synthetic Aperture Radar Drone Gets Interferometric Imaging

A drone is shown, carrying underneath it a white plastic box. On the side of the box are two patch antennas. A camera extends from one end of the box, and a large GPS antenna from the other end.

It’s been more than a year since [Henrik Forstén] built the first iteration of his synthetic-aperture radar (SAR) imaging drone, and he’s certainly been productive in the meantime. Not only …read more Continue reading Synthetic Aperture Radar Drone Gets Interferometric Imaging→

Printing Micron-Scale Benchies With Resin and Turmeric

A white background is shown, with a grey metal plate at the base of the image. On the plate are three tiny green Benchy models. Above the Benchies is a glass cylinder. Below one of the Benchy models, text says "250 µm".

Resin 3D printing has opened up a whole new scale of resolution for hackers, but the technology can go still finer; commercial micro-SLA and two-photon polymerization printers can print items …read more Continue reading Printing Micron-Scale Benchies With Resin and Turmeric→