For the two hundred forty-eighth edition of the GeoGearHeads Jennifer of and "" is back for more on Puzzles. Before they got into that, emailed to let us know that his local library has 3D Printers. The it was straight into the e-mail from with several questions. As for geocaches from which Hiders can learn, 's , "" (), "" (), and "" () were suggested. As for new things in the world of puzzles, has become popular, received new features, was a good idea which might spread, and had it's millionth correct solution. The live video session from this Google+ Hangout On Air can be found on . Subscribe to the feed: Social Media: Email: