The Fresnel lens depends on sunlight, which is a problem in storm-related disasters. A block of magnesium and a sparker make a very durable fire-starting kit that will work under most conditions. Shave off very thin bits of magnesium, pile them up on some tinder, and give it a few sparks. Though for the coolness factor I’d really like my own fire piston.
The Fresnel lens depends on sunlight, which is a problem in storm-related disasters. A block of magnesium and a sparker make a very durable fire-starting kit that will work under most conditions. Shave off very thin bits of magnesium, pile them up on some tinder, and give it a few sparks. Though for the coolness factor I’d really like my own fire piston.