Hans Christian Ørsted was a Danish physicist and chemist who discovered that electric currents create magnetic fields, which was the first connection found between electricity and magnetism. He is still known today for Oersted's Law.
Aluminium was discovered by Charles Hall in 1888 with the work of Electrolytic method for extracting pure aluminum from its ore
Who was the Anglo-Irish scientist who, in the 17th century, discovered that "the volume of a given mass of gas at a given temperature is inversely proportional to its pressure"?