navigation

A roughly 45-minute vintage US military instructional film that gives a comprehensive overview of celestial navigation, covering sextant use and the theory behind lines of position.

The first lesson of MangoJelly's FreeCAD 0.20 beginner course, covering setup, preferences and navigation. The series teaches fundamentals through complete workflows such as sketching, Part Design and STL export.

Raw 1991 home footage of a working Etak Navigator, the 1985 in-car navigation system that predated consumer GPS. It shows the system's cassette-based map display and explains its augmented dead reckoning using wheel sensors.

Course outline for Stanford's online GNSS course, introducing how GPS works and the many uses of satellite navigation. The series pairs short lectures with backyard experiments using smartphones.

Tom Scott investigates moire-effect beacons, called Inogon leading marks, a Swedish invention from the 1980s that shows different patterns depending on the viewer's position. He visits one used to mark an undersea cable and tracks down its history.

Dave Jones of EEVblog tears down a Kollsman MD-1 Automatic Astro Compass, a mechanical analog computer from a B-52 bomber. It is part of a star-tracker inertial navigation system that computes altitude and azimuth.

Tom Scott races a London black-cab driver who has memorized The Knowledge against a phone GPS across the city, comparing local expertise to navigation software.

A short clip of the famous Hitchhiker-style circular narration of a missile guidance system explaining how it knows where it is by knowing where it isn't. It is a deadpan bit of technical-sounding absurdity about subtraction and navigation.

A short !!Con 2016 talk by blind developer Sina Bahram on how he uses a computer and writes code with a screen reader at about 1,000 words per minute. He plays how common interfaces sound and challenges the audience to go a day using only the keyboard.

Scott Manley covers how GPS works and how civilian accuracy went from a planned 100 meters to about one meter. He explains the technology and the removal of restrictions that made this possible.

A promotional video for Leap, the navigation technology invented by Jef Raskin, demonstrated on the Canon Cat computer around 1987. It shows keyboard-driven search and cursor positioning in place of a mouse.

A thoughtbot meetup talk by Max Cantor on getting most of what popular plugins provide using only built-in Vim features. It covers autocomplete, file jumping, filesystem navigation, build integration and snippets, with slides and a vimrc available.

A compilation of the 1977 BBC series The Secret War, a documentary on British scientific and technical efforts in WWII, including radar, German navigation beams and V-weapons. It features interviews with people who were there, including Albert Speer.

A reupload of Joel Spolsky's talk teaching spreadsheet users the Excel features they are probably missing, such as keyboard navigation, named ranges, tables and lookups. The original disappeared and this copy comes from the Wayback Machine.

Imphenzia's 83-minute tutorial covers the low poly modeling techniques he learned over five years of Blender use, with timestamps from navigation and extrusion onward. It uses Blender 2.83 with default keys.

Tantacrul gives a detailed UX and UI design review of the MuseScore 3 notation software and compares it with Sibelius. It examines visual appeal, navigation and notation quality.

Fernando Rojo explains how BeatGig reached $10M in sales with one frontend engineer by sharing code between React Native and Next.js, covering navigation, animation, theming and performance.

Max Brunsfeld of GitHub presents Tree-sitter, a parsing system for programming tools that supports incremental, error-tolerant parsing. He demos its integration into GitHub.com and Atom for syntax highlighting and code navigation.

A short scene from The Office US in which Michael Scott blindly follows his GPS and drives into a lake. The tagline is never trust technology.

Google ATAP's short 2014 introduction to Project Tango, a mobile device effort to give phones and tablets a human-scale understanding of space and motion. It pitches ideas like indoor navigation and games that interact with your physical space.

SpaceX footage of the Grasshopper reusable rocket prototype flying 325 m before landing on its pad. It was the first test to use the full navigation sensor suite and closed-loop control for a precision landing.