okay, this lends credence to the evaporation theory the tealights i burn in this jar are almost always the white ones which glow under UV the sand does not glow under UV see those whiter flecks? this is in front of a UV light

is it paraffin evaporating from the tealights and condensing on the glass somehow?? who knows

let's find out

i crumbled half of the big lump back into the jar so we'll see what this does if anything i'm wondering if it's moisture somehow but three tealights should be evaporating any moisture and drying out the immediate area as we've just seen the white sand seems like a binding element almost

experiment update: not reproduced with the black sand (yet?) although the effect of drying out the top half is quite clear in the colour

besser

why am i even watching beginner's dutch for english speakers when dutch for german speakers will definitely exist

and it is actually an exception anyway!

… but, simultaneously my subconscious is screaming "ok but it is pretty obvious and she's talking really slowly do we have to learn this??? jeeeeez"

dutch is SO weird to try to learn, like i didn't know what the plural of dag or its pronunciation was (tho could have deduced), i don't know the days of the week or the months or even the numbers off the top of my head or the alphabet actually BUT