lrnit on Instagram: "At first, it feels like magic. 🪔 No wires. No battery. No switch. This old-school miner’s lamp doesn’t rely on electricity at all — it uses chemistry. Inside, calcium carbide reacts with water to produce acetylene gas, which burns to create a steady flame. Light, created without power. But the real genius is safety. The flame is sealed inside a metal mesh that absorbs heat and prevents sparks from escaping. Even if flammable gases surround it, the fire can’t spread outside