Soldering flux is (or at least, should be) one of the ubiquitous features of any electronics bench. It serves the purpose of excluding oxygen from a solder joint as it solidifies, and in most ...

Arctic kelp absorbs metals from melting glaciers, increasing mercury levels by 72%. This could harm marine life and fisheries ...

Lead solder features a lower melting point, so it's quicker to use ... To avoid this, use a rosin flux on the wire strands ...