LOM v1.0atomicLOM v1.02URLhttp://portal.discoverthecosmos.eu/node/187703enThe teaching activities consist in measuring the mass of a spiral galaxy, viewed edge-on, using the same procedure employed by astronomers. It is surprising how just a few measurements and the knowledge of a few fundamental laws of physics make it possible to weigh the largest and most distant objects in the Universe, despite the impossibility of carrying out direct measurements. The simple measurement proposed here makes it possible to obtain experimental evidence for the existence of the famous dark matterdemonstrator Galaxy mass doppler effect rotation curveLOM v1.0draft1.0LOM v1.0author2012-09-28LOM v1.0publisher2012-09-28enLOM v1.0LOM v1.0creator2012-09-28LOM v1.0validatorLOM v1.0browserLOM v1.0anyLOM v1.0osLOM v1.0anytext/htmlhttp://portal.discoverthecosmos.eu/node/187703LOM v1.0noLOM v1.0noLOM v1.0activeLOM v1.0highLOM v1.0difficultLOM v1.0exerciseLOM v1.0graphLOM v1.0tableLOM v1.0Inquiry-Based TeachingLOM v1.02 didactic hours15-1818-25LOM v1.0DisciplineScienceAstronomy: CosmologyAstronomy: Dark matterAstronomy: GalaxiesAstronomy: OrbitAstronomy: Rotation curveAstronomy: Stars