nostr:nprofile1qy2hwumn8ghj7un9d3shjtnyd968gmewwp6kyqpq9dk3n6207lwfclf7t36cnfqmx8gnklqen3jnu0pmejng36gvf6qsfm7r0z
> Microscopes...
It's a brix refractometer used by bee keepers to measure the amount of water in honey. Similar refractometer devices are also commonly used by brewers, vintners and d...
