During World War II, British commandos were faced with the challenge of quickly connecting wires to their explosive charges. Instead of relying on traditional soldering methods, they used pyrotechnic self-soldering sleeves developed by the Special Operation Executive. These sleeves consisted of a copper tube with solder and pyrotechnic material, allowing for quick and efficient connection between detonators and firing wires. By igniting the sleeve, the pyrotechnic material would heat up, melting the solder and making the connection. This ingenious invention was just one example of the creative solutions developed during the war. To see these sleeves in action, watch the video provided.
https://hackaday.com/2024/01/31/check-out-these-amazing-self-soldering-sleeves-from-world-war-ii/