David Schneider

A $4 Raspberry Pi Pico can help you track a DIY balloon around the world.

Uncover hidden mine shafts and more

<p>Take birding into new territory—the night</p>

Take surprisingly detailed images of the heavens with budget hardware

Here’s a primer on how these increasingly popular heating—and cooling—machines work

Raspberry Pi–based seismometers can supplement existing networks

And why cybersecurity will always need more than purely technical solutions

<p>How to hunt for downed radiosonde beacons with a cheap SDR receiver</p>

An expert discusses what might ensue if the drone hits the airframe, windscreen, or a turbofan engine

Small recreational drones would likely pose no more danger to aircraft than sparrows and gulls