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Jul 8, 2019 at 20:08 comment added Starfish Prime @Benjamin you're limited only by your ability to create hard substrates or plate etched substrates with transparent protective layers. The technique here, "Rosetta-HD" is used by de Beers to mark their diamonds, for example.
Jul 8, 2019 at 19:38 comment added SurpriseDog Just be careful not to scratch it!
Jul 8, 2019 at 11:58 comment added Efialtes A single one of these is said to hold 13000 pages of documentation...
Jul 7, 2019 at 7:05 vote accept NimNim
Jul 7, 2019 at 7:05
Jul 7, 2019 at 6:39 history answered Starfish Prime CC BY-SA 4.0