Ever wondered how to start a campfire without matches? Or why igloos, despite being made of ice, keep you warm in freezing conditions? Survivalist Donny Dust explains these and dives into even more subjects, like identifying the most nutritious insect to eat while in the wild and what it truly means to die by exposure, in this episode of Wired’s Tech Support.

Whether you’re a seasoned adventurer or simply a novice, this video is packed with useful tips and insights. Don’t miss out on these essential survival advice that could come in handy on your next outdoor excursion.