Remember those running maps I made with limited data from RunKeeper? Strava, which also provides an app to track your runs and bike rides, has a much more expansive version of popular paths around the world. Their dataset includes over 77 million rides and 19 million runs, summing to about 220 billion data points. Just pan and zoom to your area of interest, and there you go.
Where people bike and run, worldwide
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Toilet Paper Calculator
Maybe you’re starting to run low. Here’s how much you’ll need when you go to restock.
Shifting Incomes for American Jobs
For various occupations, the difference between the person who makes the most and the one who makes the least can be significant.
Tooth Fairy Exchange Rate
Calculating how much money a kid gets after exchanging all twenty baby teeth.