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Submission + - Better Living Through Data (

jradavenport writes: Using 2 years of continuous (every 1 minute) monitoring of my MacBook Air battery usage, I have been able to study my own computer use patterns in amazing detail. This dataset includes 293k measurements, or more than 204 days of use over 2 years. I use the laptop more than 50hours per week on average, and my most productive day is Tuesday. Changes in my work/life balance have begun to appear over the 2 year span, and I am curious if such data can help inform how much computer use is healthy/effective.

Submission + - 24 hours of King County (Seattle) Metro in 6 minutes (

jradavenport writes: This video shows every bus through every stop in Seattle's metro system for a typical weekday. More than 12,000 individual bus trips are made each day, from 240 different routes. The bus positions are rendered for every 6 seconds of real time. Note how the entire city, every major landmark, is drawn out simply using bus stops.

Submission + - The war in Afghanistan has lasted longer than 84% of all wars ever (

jradavenport writes: Based on over 1000 wars listed in Wikipedia with start/end dates, I found the median duration is just 2 years. Sorting them all by duration, we see that at 12.3 years (and counting), Afghanistan is longer than 84% of all wars in human history. Interestingly, the last year without a *recorded* war was 597AD!

Submission + - Studying the Slow Decay of a Laptop Battery for an Entire Year (

jradavenport writes: I've been keeping a log of the health of my MacBook Air battery for the past year, taking samples every minute I use the computer (152,411 readings so far!). This has allowed me to study both my own computing/work habits, but also the fascinating rapid decay of battery capacity. Comparing it to my previous 2009 MacBook Pro, the battery in this 2012 Air is degrading much faster.

"The most important thing in a man is not what he knows, but what he is." -- Narciso Yepes