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Mo’Saci Science

The MoSaci Field Notes

GPS, decoded. Tracking, demystified.

Friendly, well-researched guides on positioning technology: how GPS works, how tracking actually helps, and how to pick the right tool for the job.

Several GPS trackers of different sizes laid out for comparison
Buying Guides8 min read

How to Choose a GPS Tracker: A Practical Buyer’s Guide

Battery life, size, update frequency, coverage and cost all pull in different directions. Here is how to weigh each factor and choose the GPS tracker that actually fits your situation.

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Timeline illustration of GPS history from early satellites to smartphones
GPS Basics8 min read

The History of GPS: From Cold War Tech to Everyday Magic

What started as a Cold War military program is now the invisible backbone of navigation, logistics, and everyday life. Here is how GPS got from a 1973 Pentagon project to the satellite network billions of people rely on today.

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Diagram of GPS trilateration using three satellite distance spheres
GPS Basics8 min read

Trilateration vs Triangulation: How GPS Really Finds You

Most people call it triangulation, but GPS actually uses trilateration. Here is why that distinction matters, how satellite distances pin down your exact position, and what the math looks like without the math.

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GPS fleet tracking dashboard showing vehicles on a live map
Buying Guides9 min read

GPS Fleet Tracking: A Practical Guide for Growing Fleets

GPS fleet tracking tells you where every vehicle is, how it’s driven, and when it needs maintenance. Here is what it does, what it costs, and how to roll it out without the headaches.

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