Lithium-ion batteries power the iPhone (among other things), but what if we could use a different power source like coal or diesel? With some back-of-the-napkin math, Jon Keegan for the Wall Street Journal imagines what if. It’s all about the body fat-powered iPhone with nine days of battery life.
Imagining alternative iPhone power sources
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Relationship Status Geography
Some places attract young singles, whereas others attract married couples and families. I was curious how this varied across the country, so I mapped it.
About 18 percent of couple households are single-income. I wanted to know what the earner in these homes usually do.
Who Takes Care of the Kids, By Household Income
Higher income usually means more childcare, and lower income usually means less.