<http://schema.org/articleBody>
"Resembling a steampunk-style drink coaster, the Epiphany onE Puck houses a tiny Stirling engine activated by the heating or cooling of air that, whether resting below a hot or cold beverage, produces enough energy to fully juice up a smartphone"^^<http://www.w3.org/2001/XMLSchema#string>
<https://www.thrillist.com/own/nation/epiphany-one-puck>