Home›Physical phenomena›observatoreffect🌐NederlandsEnglishBahasa IndonesiaDeutschEspañolNederlandsPolskiPortuguêsSvenskaРусскийالعربيةفارسی한국어中文日本語EntityQ9251458· pop 15· linked from 41 articlesobservatoreffectAlso known as measurement effectfact that simply observing a situation or phenomenon necessarily changes that phenomenonAvailable in 15 languages中文日本語РусскийPortuguêsالعربيةCatalanGalicianHebrewHungarianPolskiConnectionsphysicsEntityenergyEntityCategoriesPhysical phenomena