Subject
9 entries
Quantified Self
Bookmarks
How I Put My Whole Life into a Single Database
Felix Krause's account of tracking his entire life in a single structured database — health metrics, mood, social interactions, finances, productivity — for years. A committed quantified-self practice that raises honest questions about what actually changes when you measure everything.
Quaternion: 3D Rotation for Quantified Self Data
Tweet from SFDataScience meetup about quaternions as the right representation for 3D rotation data from phone accelerometers/gyroscopes. Quaternions avoid gimbal lock and enable smooth interpolation — more practical than rotation matrices for sensor fusion.
Wearable Technology at Chartio
Personal photo from a wearable technology gathering at Chartio in San Francisco, June 2013. Chartio was a BI startup; this was a community event around the early wearables movement, about a year before the Apple Watch announcement.
Jawbone UP API (Unofficial)
Eric Blue's unofficial API documentation for the Jawbone UP activity tracker — reverse-engineered from the mobile app's HTTP calls to expose sleep, step, and activity data programmatically. A 2013 snapshot of the unofficial API culture around early consumer wearables.
Whistle: Fitbit for Dogs
Whistle launched a fitness tracker for dogs — a clip-on activity monitor that tracks steps, rest, and calories for pets. An early example of quantified-self thinking applied to pets, presaging the explosion of IoT and connected health devices.
A Personal API
Naveen Selvadurai (Foursquare co-founder) on the idea of building a personal API — a structured endpoint for your own life data that others (with permission) could query. An idealistic vision of personal data sovereignty that anticipated later discussions about data portability and self-sovereign identity.
Scanadu Scout: The First Medical Tricorder
Scanadu Scout's Indiegogo campaign for a handheld medical sensor that measures vital signs (heart rate, blood pressure, temperature, SpO2) in seconds by touching the forehead. One of the most-funded health crowdfunding campaigns of 2013, invoking the Star Trek tricorder as its design aspiration.
Moves for iPhone
Moves was a free iPhone app that automatically tracked walking, running, and cycling using the phone's motion sensors — no manual logging required. A 2013 standout in the quantified self movement before Apple Watch dominated activity tracking.
Jehiah 12: A Personal Annual Report
Jehiah Czebotar's personal annual data report visualizing a year of self-tracked data — location, activity, sleep, and more. An early example of the personal analytics / quantified self genre applied with real design craft.