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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People get married at various ages, but there are definite trends that vary across demographic groups. What do these trends look like?
Most Common Occupation by Age
As we get older, job options shift — along with experience, education, and wear on our bodies.