Obligatory Lindybeige - introduction to ancient slings, and comparison to archery.

Here are some people at DEFCON who have been making low-cost devices for identifying the radio fingerprint of nearby flock cameras: https://youtube.com/watch?v=-2uAsJ5EPAw

Turns up with a tree harvester - “okay, this thing can process a thousand trees per day, who will pay 1000x rates?”