Can you heat your home with junk mail? Build this super-efficient rocket mass heater, and you just might!

Learn to use echolocation to help you "see" in the dark -- an incredibly useful skill whether you're in an off-grid situation or in a true emergency.

Acorns are a traditional Native American food -- and for those who are willing, they're still an abundant food source today. Here are three ways to pr

Can you heat your house with junk mail? Build this super-efficient rocket mass heater, and you just might!

“You have deep survival in your genes. All of your ancestors were survivors or you wouldn’t be here now,” David told us.