Soldering
Soldering is a way to join metal (wires, for example) by adding another metal (fusible alloy) that melts (solders) at a lower temperature than the two metal pieces we want to be joined. The solder is the glue holding it together. The purpose is to form a permanent conductive connection between the two connections. It needs to be a good enough connection to survive a pull test. When we’ve soldered our items, we will try the pull test to be sure our connections hold. Welding melts all the metal items together using higher temperatures, and we won’t be doing that with our soldering process. Solder is a mix of tin, lead, and sometimes flux. We can buy lead-free solder, and this is what I would recommend as lead-based solder is too dangerous, not environmentally friendly, and not worth the risk.
You’ll need skill and dexterity to solder. This challenge is something I thoroughly enjoy doing! Practice using old components or buy resistors that are inexpensive...