Fabian GiesenFUN FACT: the "nano" prefix ultimately descends from Ancient Greek "nanos", which means "dwarf".
Consequently, translating "nanotechnology" as "dwarven machinery" is arguably defensible.
As an aside, we use impossibly bright, impossibly blue light to inscribe tiny runes on sand, producing constructs that obey our commands (well, sometimes...) and communicate with us through literal liquid crystals.
This is not a fantasy setting. I'm just describing the real world
(well I'm leaving out 1000s of in-between steps, but still)
Kayama 
&@rygorous I have a magic rectangle. One side is metal, the other glass. On the glass side, pictograms appear. If I touch the pictograms according to the prescribed sequence, wondrous things from around the world are brought to me, but at great cost, by the unwilling servants of the dark lords.