#5515114A solar concentrator designed by Soviet inventors.Sign in or register,to downloadAdd to cartRemove from cartCategories: Science & TechnologyLocation: RussiaEvent date: 01.07.1974Date published: 30.05.2018Credit: SputnikOriginal: A74-6455, 35 mm filmMedia: JPEG, 3543x5588px, 6.2Mbindustrysolar powerparabolicheliothermalsolar thermalradiatorreflectorenergyelectrical deviceelectricityinstallationsolarsovietportativesurfaceheatermethodconcentratorsourceinventionradiationdeviceapparatusussr