513
They were a big deal! (media.piefed.world)
submitted 4 months ago by to c/whitepeopletwitter@sh.itjust.works
61 comments fedilink hide all child comments
 
you are viewing a single comment's thread
view the rest of the comments
[–] 16 points 4 months ago (6 children)

Hell yes i've heard of Evanesence:

  • permalink
  • fedilink
  • source
  • hideshow 6 child comments
    •
  • [–] 3 points 4 months ago (4 children)

    Is that how saltpeter forms?

  • permalink
  • fedilink
  • source
  • parent
  • hideshow 4 child comments
    •
  • [–] 2 points 4 months ago (3 children)

    I think that might be a regional nickname for it - it does indeed form salts which are loosened from the inside of the brick/concrete (both have salts in) by water, and then transported to the outside by the same water.

  • permalink
  • fedilink
  • source
  • parent
  • hideshow 3 child comments
    •
  • [–] 1 point 4 months ago (2 children)

    I can't find anything relating saltpeter to the term "evanescence" but I know it forms due to humidity + capillarity in stone/brick walls (I recently moved into a house that has some so I only recently started learning about this) so I guess it is the same thing. The scientific name for it is potassium nitrate

  • permalink
  • fedilink
  • source
  • parent
  • hideshow 2 child comments
    •