1804: William Hyde Wollaston and Smithson Tennant discovered 4 of the missing 5 platinum group metals: rhodium, palladium, iridium, and osmium. #Poetry #Science #History #Metals #Chemistry #PlatinumGroup #Wollaston #Tennant (https://sharpgiving.com/thebookofscience/items/p1804.html)
#poetry #science #history #metals #chemistry #platinumgroup #wollaston #tennant