







Interactive article explaining how GPS works.
The Physics Of GPS | An Interactive Exploration
An interactive exploration of how GPS works — from the speed of light and trilateration to the cheap clock problem and Einstein's relativity corrections.

Mechanical Watch – Bartosz Ciechanowski
Interactive article explaining how a mechanical watch works.

Mechanical Watch – Bartosz Ciechanowski
Interactive article explaining how a mechanical watch works.

Two Ways to Build Location on ATProto: Geo Markers vs. Embedded Check-ins
A technical comparison of architectural approaches for location-aware apps on Bluesky
The Missing Piece: How Location Data is Coming to the AT Protocol - Building on atproto
A deep dive into community-driven geolocation schemas, emerging projects, and the future of location-aware social networking on Bluesky
I Decompiled the White House's New App
The official White House Android app has a cookie/paywall bypass injector, tracks your GPS every 4.5 minutes, and loads JavaScript from some guy's GitHub Pages.
The Missing Piece: How Location Data is Coming to the AT Protocol
A deep dive into community-driven geolocation schemas, emerging projects, and the future of location-aware social networking on Bluesky
The Huge, Unseen Operation Behind the Accuracy of Google Maps
The Google Maps team refines their maps and keeps them up to date with a combination of computer vision algorithms and meticulous manual labor

Treeline — Open Telemetry & Trail Ecosystem
Decentralized outdoor fitness, GPS tracks, and adventure logs on the AT Protocol. User-owned data stored directly in your PDS.

ATProto PDS Network Map
Interactive map tracking ATProto Personal Data Servers worldwide. Explore the decentralised Bluesky network!

TransformTO Tracking — Travel Modes by Ward
Track Toronto transportation mode share by ward, trip distance and year from the Transportation Tomorrow Survey, and progress toward the TransformTO 2030 goal of 75% of work and school trips by walking, cycling or transit.
Pravda Dashboard — Tracking Russia's Pravda Network
Discover the Pravda Dashboard World Map, an interactive application that tracks and visualizes the influence and reach of Russia's Pravda Network across more than 110 countries and regions worldwide. Dive in to explore the global footprint and impact of this extensive network
Researchers Alarmed as GPS Readings Suddenly Veer Off by 33 Feet, Enough to Crash Self-Driving Cars
Scientists are warning that a powerful solar storm threw GPS readings off by as much as 33 feet -- enough to cause real-world safety dangers.
