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September 1, 2013: Speed Hiking From Mexico to Canada, Coming Face to Face With a Grizzly and More

This week, we set a speed record walking from Mexico to Canada, pack bear spray in the event that we encounter a bear, dog or family member who gets out of line, and cycle across the United States in just 42 days.

Hangout with an Inventor (and Build Some Cool Stuff!)

Join our next Google+ Hangout as NG Explorer TH Culhane shows you how to build three different types of motors and generators with materials mostly found at home, Monday, December 3rd at 1:00pm ET.