
Guide
Checking satellite imagery before you trust a map
Resolution, revisit time and licensing decide what an image can show, and what a report may claim from it.
Security section
Dated explanations of source changes and practical security context. Use the question that sounds closest to your situation; you do not need to diagnose the event before starting. Each dispatch names the next safe action, the information worth retaining, and the condition that makes an official provider or responsible organisation the right next destination. These are steady reference notes, not a stream of alarms.


Guide
Resolution, revisit time and licensing decide what an image can show, and what a report may claim from it.

Guide
Community dial-up systems gave the public a first route online, and their shared terminals asked questions libraries still meet.

Guide
Boom and probe-and-drogue systems, the tanker fleets that fly them, and how refueling missions are planned and standardised.

Guide
Reflective and absorptive PIN switches, isolation, insertion loss and the driver circuit: what RF engineers should check before trusting a datasheet.

Guide
Royalty free versus rights managed, how b-roll works, and what old film can realistically supply to a documentary edit.

Guide
How tethered balloons work between 30 and 500 feet, what architecture and construction teams use them for, and which US rules apply.

Guide
How US low-power FM stations get licensed, what the 100-watt rules require, and what running a volunteer community station looks like day to day.

Guide
How a civil case moves through Mississippi courts, what damages exist, and how business, insurance and employment disputes work, in plain English.

Guide
The habit that defeats phishing, checking a claim through a channel the sender does not control, also tells you which service provider to hire.

Guide
A documented look at the early volunteer network and the value of cross-referral.

Guide
How to turn a bounded regional report into restrained, durable action priorities.
Further afield
Spanish-language notes on how a recording studio is organised, a craft that documents its working method as openly as we try to document ours.
French reading on how a video is actually produced, from the brief to the final cut.