Search:

An anti scale compound can be a thin glaze of pottery mud (slip) mixed with carbon (powdered charcoal).
Commercial products exist.
The goal is a thin layer that keeps oxygen in the furnace from...

For those switching measurement systems there is only one conversion to commit to memory.
And it is exact.

1 inch == 2.54 cm or 25.4 mm
== is short for exactly. It was close for a long...