Who in 1801 discovered the ultraviolet radiation?
Johann Wilhelm Ritter
UV radiation was discovered in 1801 when the German physicist Johann Wilhelm Ritter observed that invisible rays just beyond the violet end of the visible spectrum darkened silver chloride-soaked paper more quickly than violet light itself.
reach: rather globalhistorylightphysicsscience
+1 Very interesting! Aamir Mohamad
+1 Very interesting! Fenix345