Comment on Pens in Space
quediuspayu@lemmy.dbzer0.com 1 month agoAlso a broken bit of lead could easily float into someone’s eye or get aspirated.
Comment on Pens in Space
quediuspayu@lemmy.dbzer0.com 1 month agoAlso a broken bit of lead could easily float into someone’s eye or get aspirated.
NuraShiny@hexbear.net 1 month ago
There is no way either side used lead pencils. Saying lead is in pencils is a very outdated thing, it’s all graphite these days.
xor@lemmy.dbzer0.com 1 month ago
it hasn’t been graphite for while now either….
pencil lead
Vespair@lemm.ee 1 month ago
Chalk isn’t chalk?
Arcka@midwest.social 1 month ago
Regular chalk is calcium carbonate. Crayola’s website says their sidewalk chalk uses calcium sulfate (gypsum as an ingredient in plaster of paris).
So they’re both calcium salts.
xor@lemmy.dbzer0.com 1 month ago
no
Andromxda@lemmy.dbzer0.com 1 month ago
A sharp piece of graphite from a broken pen is not something you would want in your eyes either