What the flux does, when you heat a workpiece, is it reacts with these metal oxides that are forming with the temperature and exposure to the air, that tend to interfere with the metal-forming process of soldering.
What the Olympic medals mean... it was the best of times, it was the worst of times. It was the best of times, it was the worst of times definition. The opening sentence of A Tale of Two Cities, by Charles Dickens, referring to the time of the French Revolution. Discover our greatest slideshows.
The 2015 Grammys: Best and Worst Moments. Now that the 57th Grammy Awards have sunk in, we give you the best and worst of the night. From performances (great and bad), to controversial calls, to pure WTF moments, here are the story lines that are likely to have people talking. BEST MOMENTS: Grammys 2015: All Our Coverage.