🌐EnglishEnglishBahasa IndonesiaDeutschEspañolFrançaisItalianoNederlandsPolskiPortuguêsSvenskaTürkçeالعربيةفارسیहिन्दी한국어中文日本語EntityQ111602317· pop 14· linked from 5 articlesWorld Quantum Dayannual event for promoting public understanding of quantum science and technologyConnectionsquantum mechanicsEntityWayback MachineEntityCategoriesApril observancesInfobox holiday fixed dayInfobox holiday with missing fieldScience eventsTechnology events