bhistoryartifacts·HistoryArtifactsbybrisk Wearable Abacus from the Qing Dynasty 1644 CE -1912 CEhttps://dataphys.org/list/wearable-abacus-from-the-qing-dynasty/Open linkView original on aussie.zone9Comments2
Cruxifux feddit.nl“You have to learn how to do it without your abacus! You’re not just going to have one on your hand at all times!”5
“You have to learn how to do it without your abacus! You’re not just going to have one on your hand at all times!”
Cool af, but my blind ass would never be able to work with that XD