Because I imagine I wasn't the only one with no clue what "spall" was: > Spall are flakes of a material that are broken off a larger solid body and can be prod

Because I imagine I wasn't the only one with no clue what "spall" was: > Spall are flakes of a material that are broken off a larger solid body and can be produced by a variety of mechanisms, including as a result of projectile impact, corrosion, weathering, cavitation, or excessive rolling pressure (as in a ball bearing) https://en.wikipedia.org/wiki/Spall https://en.wikipedia.org/wiki/Spall