So basically why drag racers use slicks as opposed to street tires. Makes sense.

Also that hot blueing stick/penetrates better (in the absence of fire and lead)...
So the bluing coming off the inside may be related to oxidation energies...

My chemistry is a bit rusty but zinc is to the right of iron on the periodic chart. Zinc is used as a sacrificial anode to prevent rust on boat prop shafts and motors. Lead is to the right of zinc. Copper is next to zinc on the left side, but still right of iron. Perhaps under the heat of firing the oxygen if the bluing prefers to stick to copper or lead?


Dan_OZ, a cool YouTube clip for magnetic force and copper found while looking up periodic table and oxidation.....
https://m.youtube.com/watch?v=sENgdSF8ppA

-OMotS


"If memory serves fails me..."
Quote: ( unnamed) "been prtty deep in the cooler todaay "

Television and radio are most effective when people question little and think even less.